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Prepositions after adjectives

Fit for, with, in, into or to?

Different prepositions after fit have different meanings. Some describe suitability, while others describe size, compatibility, or belonging.

Quick answer

Common uses of fit with different prepositions

Use fit for for suitability, fit with for compatibility, fit in or fit into for belonging or physical placement, and fit to before a verb in formal English.

She is fit for the role.
That explanation doesn't fit with the evidence.
He never fit in at school.
The sofa won't fit into the lift.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
fit for + purpose/role

Suitable or qualified

Fit for describes suitability, ability, or readiness.

The candidate is fit for management.
This water is fit for drinking.
2
fit with + idea/system

Matching or agreeing

Fit with means to be compatible or consistent with something.

Your proposal fit with our goals.
The data doesn't fit with the theory.
3
fit in + group/place

Belonging socially or practically

Fit in means to belong or be accepted.

She quickly fit in with the team.
I never fit in there.
4
fit into + space/system

Going inside or becoming part of something

Fit into refers to physical space or inclusion in a larger structure.

The table won't fit into the kitchen.
How does this task fit into the schedule?
5
fit to + verb

Formal expression meaning suitable or ready

Fit to is formal and usually followed by an infinitive.

He was fit to return to work.
The machine is fit to use.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
fit for
She is fit for the position.
suitable or qualified
fit with
That plan fits with our budget.
compatible or consistent
fit in
He struggled to fit in.
belong socially
fit into
The bike fits into the car.
go inside or become part of
fit to
The patient is fit to travel.
ready or suitable to do something

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using fit with for suitability

Use fit for when meaning suitable for a role or purpose.

✕ She is fit with the job. ✓ She is fit for the job.

Confusing fit in and fit into

Fit in often refers to belonging. Fit into often refers to entering a space or structure.

✓ He fits in at work, but his desk does not fit into the room.

Using fit to without a verb

Fit to is usually followed by an infinitive.

✕ The patient is fit to the journey. ✓ The patient is fit to travel.

Quick practice

Choose the expression that matches the intended meaning.

1. This tool is ___ professional use.
2. Her explanation doesn't ___ the facts.
3. The suitcase won't ___ the overhead compartment.

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Frequently asked questions

What is the difference between fit in and fit into?

Fit in usually refers to belonging socially. Fit into often refers to entering a space or becoming part of a system.

Is fit to formal?

Yes. Fit to plus a verb is more formal than ready to or able to.

Can fit with be used for people?

Yes. It can describe compatibility, as in 'Her style fits with the team culture.'

face-to-face-with-in-at-for, to "fair to" or "fair in"? faithful to, in, of, with or for? falling of, in, out, into or off? "false in" or "false to"? famed for, as, in or throughout? familiar with, to, from or in? famous for, in, of, by or as? fanatical about, in, as, for or of? "fantastic for" or "fantastic in"? far from, in, to, for or with? fascinating to, about, in, for or as?

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