Agreement: 'I is / you is / ... '

Many writers type or say "I is" instead of the correct "I am." The error comes from mismatching subject and verb: first-person singular needs am, not is.

Quick answer

Use I am (or I'm). "I is" is nonstandard because the verb be must match the subject: I → am, you → are, he/she/it → is.

Short fix: after I, replace is or are with am (I am, I'm).
Use I'm for informal speech and I am for emphasis or formal writing.
Change tense as needed: I was (past), I will be (future), I would be (conditional).

Core rule: subject-verb agreement for be

The present tense of be differs by person: I am, you are, he/she/it is. "Is" belongs with third-person singular, not with I.

For progressive forms combine am + -ing: I am going, I am working.

I → am (I am, I'm)
You → are (You are, you're)
He/She/It → is (He is, she's)

Wrong: I is tired.
Right: I am tired.
Wrong: You is invited.
Right: You are invited.

Spot and fix it fast

Scan for the subject then check the verb. If I is followed by is/are, swap it to am. If the sentence needs a different tense or mood, pick the correct form (I was, I will be, I would be).

Checklist: find the subject → check person/number → adjust the verb.
If you're unsure, rewrite with a different verb (I plan to go; I will send).
Read aloud: if it sounds wrong, rephrase.

Wrong: I is going to submit the report later.
Right: I am going to submit the report later.
Wrong: When I is on vacation, I disconnect email.
Right: When I am on vacation, I disconnect email.

Real usage and tone

I'm (I am) is standard in speech and informal writing. Use I am for emphasis or formal contexts. "I is" appears only as an intentional dialectal choice in dialogue or to show a character's voice.

Formal (work, school): prefer I am.
Casual (texts, chats): use I'm.
Dialogue/voice: use "I is" deliberately and sparingly to convey dialect.

Work: I am attaching the spreadsheet to this email.
Casual: I'm running 10 minutes late.
Dialogue: He said, "I is tired," to show the character's speech.

Examples: wrong/right pairs you can copy

Here are compact pairs grouped by context. Copy the right-hand sentence to correct your writing quickly.

Wrong: I is going to the meeting now.
Right: I am going to the meeting now.
Wrong: I is ready to present the results.
Right: I am ready to present the results.
Wrong: I is planning to join the call later.
Right: I am planning to join the call later.
Wrong: I is going to pick up the package.
Right: I'm going to pick up the package.
Wrong: They is expecting a delivery today.
Right: They are expecting a delivery today.
Wrong: You is responsible for the budget update.
Right: You are responsible for the budget update.

Try your sentence

Test the whole sentence, not just the phrase. Context usually makes the correct form obvious.

Work, school, casual - ready-to-copy fixes

Quick, tone-appropriate rewrites you can drop into emails, assignments, or messages.

Work - wrong: I is available to review the draft at 3 p.m.
Right: I am available to review the draft at 3 p.m.
Work - alt: I can review the draft at 3 p.m.
School - wrong: I is arguing that the data supports the claim.
Right: I argue that the data support the claim.
School - alt: The data support the claim.
Casual - wrong: I is gonna be late to dinner.
Right: I'm going to be late to dinner.
Casual - alt: Running late - be there in 15.

Rewrite help: three patterns to fix any sentence

Choose one of these patterns depending on context and tone.

Swap the verb form: Replace is/are with am for I. (I am going.)
Change tense/modal: Use will/would/was when appropriate. (I will go; I was there.)
Remove first person: Use a noun phrase or passive voice. (The report will be sent.)

Rewrite 1 - wrong: I is finishing the report tonight. A: I am finishing the report tonight. B: I will finish the report tonight. C: The report will be finished tonight.
Rewrite 2 - wrong: I is attaching the appendix. A: I am attaching the appendix. B: The appendix is attached below. C: Please find the appendix attached.
Rewrite 3 - wrong: I is responsible for the slide deck. A: I am responsible for the slide deck. B: I will prepare the slide deck. C: The slide deck is my responsibility.

Memory trick, hyphenation and spacing

Mnemonic: imagine a name tag that reads "HELLO, I AM ..." - I and AM belong together. That visual helps you pick am instead of is.

Contractions: use I'm (I + ' + m). Never write I'am or Iam, and don't glue words together.

Mnemonic: "I AM" name tag → pair I with am.
Contraction: I'm is correct; write I am for formality.
Spacing: I am (two words) vs I'm (one contraction).

Wrong: I'am going.
Right: I'm going.
Wrong: Iam ready.
Right: I am ready.

Similar mistakes and quick fixes

If you write "I is," you may also slip into errors like "you is," "they is," or wrong auxiliaries such as "he don't." Match person and number; learn one simple pattern: third-person singular often needs an -s or does/doesn't.

you is → you are
they is → they are
he don't → he doesn't
If I were (subjunctive) is correct for hypothetical situations.

Wrong: You is focusing on the wrong metric.
Right: You are focusing on the wrong metric.
Wrong: They is not answering the messages.
Right: They are not answering the messages.
Wrong: He don't agree with the finding.
Right: He doesn't agree with the finding.
Note: Subjunctive - Wrong: If I was you...
Right: If I were you...

FAQ

Can I ever say "I is"?

Only as an intentional dialectal choice in dialogue or to represent a regional voice. Avoid it in professional and academic writing.

Why is "I am" different from "he is"?

Verbs change shape by person and number. The present-tense forms of be differ: first-person singular uses am, third-person singular uses is.

Is "I'm" acceptable in formal writing?

I'm is correct but contractions are often avoided in formal academic or legal writing. Prefer I am when formality or emphasis is required.

How do I fix "I is" inside longer sentences?

Find the clause with I and the verb. Replace is with am, switch tense, or rephrase to remove I (The report will be sent). Read the sentence aloud to check flow.

Will grammar checkers catch "I is" every time?

Most will flag "I is" and suggest I am, but they vary in accuracy. Use a checker plus a quick manual read for context-sensitive fixes.

Want a quick check?

Paste a sentence into the widget above or use a grammar tool before sending an email or submitting work. For tone-specific rewrites, choose suggestions labeled formal, neutral, or casual.

Tip: keep a short checklist-subject → person → tense → verb-and use the rewrite patterns here as templates.