He complaint/restraint (complained/restrained)

Writers often confuse complaint (a noun) with complained (the past-tense verb). The error usually shows up as "He complaint..." when the sentence needs a verb form instead.

Below are clear rules, common wrong→right pairs, and quick rewrites for work, school, and casual writing.

Quick answer

"Complaint" is a noun (a record or expression of dissatisfaction). "Complained" is the past tense of the verb complain. If someone performed the action of expressing displeasure, use "complained."

"He complaint" is wrong - say "He complained."
When you mean a formal report, use "file a complaint" or "filed a complaint."
Present action: "He complains" or "He is complaining." Past action: "He complained."

Core explanation: noun vs. verb (short and practical)

"Complaint" = noun. It needs an article or a supporting verb: a complaint, the complaint, filed a complaint, received a complaint.

"Complained" = past-tense verb. Use it when the subject performed the action of complaining.

Noun pattern: subject + verb + a complaint - She filed a complaint.
Verb pattern: subject + complained (+ about + object) - She complained about the noise.
If the sentence has a subject doing something and "complaint" stands alone without an article or supporting verb, you probably need "complained."

Wrong: He complaint about the delay.
Right: He complained about the delay.

Real usage: when to use the noun and when to use the verb

Use the noun "complaint" for documents, reports, or formal notices (HR, customer service, legal). Use "complained" to describe the action of expressing dissatisfaction in speech or narrative.

Formal/work: "She filed a complaint with HR."
Neutral/narrative: "She complained about the schedule."
Casual: "He complained that the coffee was cold."

Full example pairs (common wrong → correct)

Patterns repeat: when someone performs the action, use complained; when you mean a document or item, use complaint with a supporting verb or article.

Wrong: He complaint about the delay. -
Right: He complained about the delay.
Wrong: She complaint to HR about her manager. -
Right: She complained to HR about her manager.
Wrong: The student complaint the grade publicly. -
Right: The student complained about the grade publicly.
Wrong: I complaint that the coffee is cold. -
Right: I complained that the coffee was cold.
Wrong: They complainted about the food. -
Right: They complained about the food.
Wrong: We need to file an complain. -
Right: We need to file a complaint.
Wrong: He was complainting about the noise. -
Right: He was complaining about the noise.
Wrong: My complaint the service was slow. -
Right: My complaint: the service was slow. (Or "I want to complain about the slow service.")
Wrong: The customer complaint the product on social media. -
Right: The customer complained about the product on social media.

Rewrite help: step-by-step fixes and quick rewrites

Follow these steps to fix a sentence containing complaint/complained, then choose the rewrite that fits your tone.

Step 1: Decide noun (formal/report) vs. verb (action).
Step 2: If action, pick tense: complains / complained / is complaining.
Step 3: If noun, pair it with a supporting verb: file a complaint, submit a complaint, received a complaint.

Casual rewrite: Original: "He complaint about the food." → Fix: "He complained about the food."
Work rewrite: Original: "We complaint to the vendor." → Fixes: "We complained to the vendor." or "We filed a complaint with the vendor."
School rewrite: Original: "My complaint the grade." → Fix: "My complaint is about the grade." Or: "I want to complain about the grade."
Soft-tone alternative: Instead of "I have a complaint," try "I'd like to raise a concern" for a more collaborative tone.

Try your own sentence

Read the full sentence aloud. Context usually makes the correct form obvious: if someone did something, use a verb; if you mean a document or a report, use the noun with an article or supporting verb.

Quick checklist: fix your sentence in three questions

Run through these three quick checks whenever you see "complaint" or suspect a form error.

1) Is someone performing an action (speaking, protesting, expressing)? If yes → use complain/complained/complains/is complaining.
2) Is "complaint" part of a noun phrase with "a/the" or verbs like file, submit, lodge? If yes → the noun is correct.
3) Do you need a softer phrasing? Consider "expressed concern" or "raised an issue."

Example: Original: "He complaint" → Q1 yes (action) → Change to "He complained."
Example (work): Original: "File complaint about the policy" → Fix: "File a complaint about the policy."

Memory trick and habits to avoid the error

Two simple habits help: read phrases aloud and keep two go-to templates (formal and casual) for quick substitution.

Mnemonic: if a word ends in "-aint" and stands alone without "a/the," check if you actually need a verb.
Templates to store: Formal - "filed a complaint"; Casual - "complained about."
Editing habit: search for "complaint" and check whether it's used inside a noun phrase or should be a verb.

Practice tip: Replace "He complaint" with "He complained" every time during a proofreading pass until it becomes automatic.

Similar mistakes and related grammar notes

Writers sometimes create incorrect forms (complainted) or misuse "complain" and "complaint" interchangeably. Watch related words for nuance: complaint vs. criticism; complain vs. gripe.

Wrong: "They complainted" -
Right: "They complained."
Wrong: "to complaint" -
Right: "to complain."
Complaint vs. criticism: "complaint" highlights a grievance or a problem; "criticism" focuses on judgment or evaluation.

Example: "The criticism was fair" vs. "The complaint was about billing errors."

Mechanics & grammar: hyphenation, spacing, punctuation and verb forms

"Complaint" and "complained" are single words with no hyphen. Check spacing and punctuation when you rewrite.

Hyphenation: never split "complaint" or "complained" with a hyphen.
Spacing: avoid inserted spaces inside the word ("com plaint").
Punctuation: use a colon to introduce a complaint explanation - "My complaint: the package arrived damaged."
Verb forms: base = complain; present = complains / is complaining; past = complained; perfect = has complained.

Correct: "I have a complaint: the order arrived late."
Correct forms: "She complains" (habit), "She complained" (past), "She is complaining" (in progress).

FAQ

Which is correct: "he complaint" or "he complained"?

"He complained" is correct. "Complaint" is a noun; "complained" is the past-tense verb you need when describing the action.

Can "complaint" ever be used as a verb?

No. "Complaint" is a noun. The verb forms are "complain" (present) and "complained" (past).

When should I say "file a complaint" instead of "complained"?

Say "file a complaint" or "submitted a complaint" when referring to a formal, documented action (HR, legal, customer service). Use "complained" to report someone expressing dissatisfaction in speech or narrative.

How do I fix: "My complaint the service was slow"?

Add punctuation or rephrase: "My complaint: the service was slow." Or soften the tone: "I'd like to raise a concern about the slow service."

Why do people write "complainted"?

It's an incorrect analogical formation. The correct past tense is "complained." Use "expressed concern" as a safe alternative if unsure.

Quick practice and next step

Rewrite three recent sentences where you used "complaint" or "complained" and confirm that the form matches the intended meaning and tone.

For instant feedback, paste a sentence into a grammar checker or ask a colleague to confirm whether you need the noun form or the verb form.