Common mistake After auxiliary 'do', use the base form of a verb

Common Mistake: Using the wrong verb form after the auxiliary verb 'do'

One of the most common mistakes in English grammar is using the wrong verb form after the auxiliary verb 'do'. This mistake is often made because English learners are not aware of the rule that states that after the auxiliary verb 'do', you should always use the base form of the verb.

What is an auxiliary verb?

An auxiliary verb, also known as a helping verb, is used to construct grammatically correct sentences. The auxiliary verb 'do' is commonly used in negations, questions, and emphasis.

Examples:

Incorrect: She doesn't went to the store yesterday.
Correct: She didn't go to the store yesterday.

In the incorrect example, the past tense form 'went' is used after the auxiliary verb 'do'. However, the correct form should be the base form of the verb 'go'.

Why is using the base form of the verb important?

Using the base form of the verb after the auxiliary verb 'do' is important because it helps maintain the correct sentence structure and ensure grammatical accuracy. When using 'do' as an auxiliary verb, it already carries the tense information, so the main verb should be in its base form.

Example:

Incorrect: Why did they went to the movies last night?
Correct: Why did they go to the movies last night?

In this example, the past tense form 'went' is again used incorrectly after the auxiliary verb 'did'. The correct form should be the base form of the verb 'go'.

By using the Linguix grammar checker, you can easily avoid this common mistake and ensure that your sentences are grammatically correct and error-free.

After auxiliary 'do', use the base form of a verb mistake examples

Incorrect:
I usually do not forgot.

Correct:
I usually do not forget.
Incorrect:
I do forgot to do the work yesterday.

Correct:
I do forget to do the work yesterday.
Incorrect:
He does ran fast.

Correct:
He does run fast.
Incorrect:
She does forgot to do the work.

Correct:
She does forget to do the work.
Incorrect:
I do forgets to do the work.

Correct:
I do forget to do the work.
Incorrect:
I do often going to Paris.

Correct:
I do often go to Paris.
Incorrect:
Sometimes, they do forgets to correct the errors.

Correct:
Sometimes, they do forget to correct the errors.
Incorrect:
I do sometimes forgets to do the work.

Correct:
I do sometimes forget to do the work.
Incorrect:
He does not usually cuts the Christmas turkey.

Correct:
He does not usually cut the Christmas turkey.
Incorrect:
Our do faces intense sun most of the day.

Correct:
Our do face intense sun most of the day.
Incorrect:
If someone does decides to break the rules …

Correct:
If someone does decide to break the rules …
Incorrect:
I do have 2 glass break sensors if someone does decides to break the glass to easily turn the locks …

Correct:
I do have 2 glass break sensors if someone does decide to break the glass to easily turn the locks …
Incorrect:
Any standard controller does using a bulb profile.

Correct:
Any standard controller does use a bulb profile.
Incorrect:
That does makes sense but then wouldn’t the same logic apply...

Correct:
That does make sense but then wouldn’t the same logic apply...
Incorrect:
I did not usually copying and paste the code.

Correct:
I did not usually copy and paste the code.
Incorrect:
Didn’t there used to be a link in the menu to donate to the podmin too?

Correct:
Didn’t there use to be a link in the menu to donate to the podmin too?
Incorrect:
I usually don't depending on the results of the tests.

Correct:
I usually don't depend on the results of the tests.
Correct:
I usually do not forget.
Correct:
The does grazed peacefully in the wood.
Correct:
... and that does trials and tests.
Correct:
... and the technician does trials and tests.
Correct:
Try to find the wholesale shop that does clutches.
Correct:
Where do dreams come from?
Correct:
... and do dreams last forever?
Correct:
I will do little training sessions.
Correct:
I do crunches every day.
Correct:
How does centralized solar work?
Correct:
He does not usually cut the Christmas turkey.
Correct:
Both also did consulting work for Edison to help the utility win approval of a financial rescue package that Davis is pushing.
Correct:
What this does is insure that your computer will use Google for DNS.
Correct:
... all I did was update an existing piston by adding my cabinet lighting.
Correct:
...so what the electrician did was power the main switch with the hot line and ...
Correct:
The gateway does not has a subscription method.
Correct:
... but all they were doing was updating the rules.
Correct:
What I’m trying to do is turn on some lights when someone comes home.
Correct:
The only thing you won’t be able to do is update the firmware.
Correct:
All you have to do is:
Correct:
Angie will see what she can do about arranging a videoconference but does not make any promises, as any type of conference room is difficult to find these days.
Correct:
If there is not enough interest in it, I will discuss with Whalley what we do about potentially shutting it down.
Correct:
How many moons does Mars have?
Correct:
When does AIDS develop?
Correct:
Does setting the load setting between incandescent and LED make difference?
Correct:
Or does closing the low voltage wires cause the opener to start?
Correct:
... to alert me when the software does tests.
Correct:
What are you doing testing the software?
Correct:
Doing so leads others to review the claim to corroborate it or disprove it.
Correct:
I am almost done building a new home.
Correct:
... which I will do before wiring everything up.
Correct:
... which they did before quickly fixing the errors.
Correct:
... which they did quickly before going home.
Correct:
Does removing and reconnecting/naming them in ST ruin any webcore pistons that contain them?
Correct:
What she does depends on her mood.
Correct:
Whatever John, you, and the rest of the team do influences my decision.
Correct:
Nothing I seem to do impacts a change in the LED behavior.
Correct:
All the tests the technicians tried to do generally failed to give the required results.
Correct:
...but for the same price also does lighting.
Correct:
I do not do coding but seems like what I am doing is just copy and paste.
Correct:
I do lighting for a local theatre and we use Light Factory to control our DMX system.
Correct:
I would have just gotten that module so I could see stuff and then found a company to do monitoring.
Correct:
Since it only does heating, a lot of the tiles in the DH will be useless.
Correct:
It may be next to impossible for me to finish a fully working DTH without one of these in hand to do testing with …
Correct:
But there are a lot of creative things that you can do depending on exactly what you’re trying to accomplish.
Correct:
... and in that scenario it could also do dimming.
Correct:
There is one battery operated switch I know of that can do dimming regardless of the protocol of the bulbs.
Correct:
A lot of students do part-time jobs.
Correct:
... shapes of most asteroids, as did later images from the Voyager probes of the small moons of the...
Correct:
I'd like to do shopping on Fifth Avenue in New York.
Correct:
... terrestrial caecilians that lay eggs do so in burrows or moist places on land near bodies of water.
Correct:
Father does gardening whenever he gets a chance.
Correct:
And do you have any smart apps/pistons running which do polling/refresh?
Correct:
... nor does turning the power off/on to it four times at 2 second intervals seem to do anything either.
Correct:
I don’t have the device, so progress on this will completely depend on someone who does letting me know what is/isn’t working.
Correct:
With this approach I can do very advanced automation based on many conditions and states.
Correct:
... and thus eventually do very advanced automation based on the new statistical approach.
Correct:
Also, you can create virtual zone devices to do targeted heating/cooling in your home:
Correct:
It is difficult to do timed events from within a SmartDevice driver, as you cannot schedule () events.
Correct:
... which I am currently able to very quickly do using SHM by having all the cameras record a 30-second clip.
Correct:
... and this is possible to do using large devices.
Correct:
... which I was able to do rather slowly using these methods:
Correct:
The research I did showed that LanguageTool is better.
Correct:
The tests that they did showed LanguageTool is better.
Correct:
The tests the technicians sometimes do showed the problems of analysis.
Correct:
The tests that the technicians sometimes do showed no signs of error.
Correct:
One does keep it in his backpack, and it does very well tracking him away and home.
Correct:
They (the police) did very well tracking him away to his hideaway in the suburbs.
Correct:
Although the technician does very well tracking most of the bugs....
Correct:
... but without this axiom we can do quite well developing (the more general) group theory...
Correct:
... that there is nothing they can do about smoking anyway.
Correct:
What did you do yesterday evening?
Correct:
Whatever did the technicians (and their manager) do yesterday evening after they left the office?
Correct:
Whatever does she do each morning to make her so late?
Correct:
Be careful if you do do the test after 17:00.
Correct:
What will we do about getting tables, chairs and such?
Correct:
Most units had the modification, and those that did not required further analysis before we could complete the modification.
Correct:
It has the same problem that any standard controller does using a new bulb profile.
Correct:
It very frequently had the same problem that any standard controller does using a new bulb profile.
Correct:
They have the same problem that our standard controller did using a new bulb profile.
Correct:
I’ll probably be back for more questions if the other 3 way switches don’t look quite the same as the one I just did looked.
Correct:
You could do so using the Nexmo API.
Correct:
When Dimitri Mendeleev first presented his periodic table in 1869, he did so noting that there were larger than expected differences.
Correct:
The things I did made fairly any sense.
Correct:
How to do automated email testing?
Correct:
How do targeted Facebook Ads work?
Correct:
How good do targeted Facebook Ads work?
Correct:
He did so much packaging.
Correct:
How does changing the world work?
Correct:
Where did salted caramel come from?
Correct:
It has the same problems any RGBW controller does handling an RGBW bulb profile.
Correct:
I had great trouble getting to sleep last night and probably only did so minutes before the quake.
Correct:
I do formatting and proofreading.
Correct:
It suffers the same issue any rgbw controller does using a rgbw bulb profile.
Correct:
Inovelli makes one similar to the Zooz but for the same price also does dimming.
Correct:
Vista has a smartphone app controlled transformer/controller that does dimming and on/off but only over Bluetooth.
Correct:
I spent week trying to find a GreenBean module and finally did followed by a week of trying to get it to work.
Correct:
I did copying and paste the code that you recommended to create the app but I am getting this error:
Correct:
Yeah, that does seems a little weird.
Correct:
... light bulbs and switches that do not required “touchlink commissioning”.
Correct:
If technicians who are rather lazy do sometimes (more like every day! lol) forgets to do the work, tell the manager.
Correct:
Don't mothers kiss their children anymore?
Correct:
In any case my kids (10 and 12) are very interested and it gives me a chance to explain how the system works (or doesn't depending on your viewpoint).

Incorrect:
Yes, that does seems strange.

Correct:
Yes, that does seem strange.
Incorrect:
That does makes sense but then wouldn’t the same logic apply...

Correct:
That does make sense but then wouldn’t the same logic apply...
Incorrect:
That does sounds solid.

Correct:
That does sound solid.
Incorrect:
However, I got an error when I check the element that does not exists.

Correct:
However, I got an error when I check the element that does not exist.
Incorrect:
Took me 24 hours of gameplay using a team that does explores in 1-3 rounds on average to get courage traits…

Correct:
Took me 24 hours of gameplay using a team that does explore in 1-3 rounds on average to get courage traits…
Correct:
Yes, that does seem strange.
Correct:
... and which does seemed a bit unusual.
Correct:
Yes, that did seemed strange.
Correct:
... and that does trials and tests.
Correct:
... and the technician does trials and tests.
Correct:
Try to find the wholesale shop that does clutches.
Correct:
I left a message with the person that does prices at Paperloop and hopefully he will get back to me soon.

Incorrect:
… the devices which do not required the modification.

Correct:
… the devices which do not require the modification.
Incorrect:
Devices that do not usually required the modification...

Correct:
Devices that do not usually require the modification...
Incorrect:
… light bulbs and switches that do not required the modification.

Correct:
… light bulbs and switches that do not require the modification.
Correct:
… the devices which do not require the modification.
Correct:
Most units had the modification, and those that did not required further analysis before we could complete the modification.

Enhance Your English Writing Skills

Fix common errors and boost your confidence in every sentence.

Get started
for free

Related mistakes from category Grammar

Use the base form or the past tense with a plural noun hundreds of thousand (thousands of) users anymore (any more) ve didn't several other (others) good (well) according to knot (not) worse come to worse (worst) prostrate (prostate)