a + complain/restrain

Putting the indefinite article a directly before a base verb (for example, "a complain" or "a restrain") is a common slip. Complain and restrain are verbs; the related nouns are complaint and restraint. Use the verb without a (complain, restrained) for actions, and the noun (complaint, restraint) when you need something countable or recordable.

Quick answer

Don't put a before a verb. Use the verb alone (I complain, they restrained) or use the correct noun if you need an article: a complaint, a restraint.

"She complained." - correct (verb).
"She made a complaint." - correct (noun).
"She made a complain." - wrong.
"They restrained him." - correct (verb).
"They placed a restraint on the account." - correct (noun).
"They placed a restrain on the account." - wrong.

Core grammar: verb vs noun - the simple rule

Complain and restrain are verbs. If you need a countable item or a record, use complaint and restraint. If you mean an action or behavior, use the verb form and drop the article.

If it's an action: use the verb. Example: "She complained."
If it's an instance or thing: use the noun. Example: "A complaint was filed."
Phrase hint: verbs like make/submit/file take a noun after a - e.g., "make a complaint."

Real usage and tone

Formal reports and logs favor nouns: "file a complaint," "place a restraint." Conversation and behavior descriptions favor verbs: "I complained," "he restrained himself."

Work/report: "Please file a complaint" vs "The manager restrained access."
School/report: "A complaint was submitted" vs "The student complained."
Casual: "I complained about the noise" vs "She showed restraint."

Fix-it checklist and reusable rewrites

Checklist: (1) Is it an action or an instance? (2) If action → use the verb and remove a. (3) If instance → use the noun (complaint, restraint). (4) Adjust surrounding verbs (make/submit/file → noun).

If you wrote "made a complain" → change to "made a complaint" or "complained."
If you wrote "put a restrain on" → change to "put a restraint on" or "restrained."
Formal logs: prefer "filed/registered/reported a complaint"; behavior notes use verb forms.

Rewrite:
Original: "She made a complain about the delay." → "She made a complaint about the delay."
Rewrite:
Original: "They put a restrain on the account." → "They placed a restraint on the account." or "They restrained activity on the account."
Rewrite:
Original: "I will make a complain to the teacher." → "I will complain to the teacher." or "I will file a complaint with the teacher."
Work template: "Please file a complaint with Security." (instead of "Please file a complain")
School template: "A complaint was received regarding cafeteria food." (instead of "a complain was received")
Casual template: "I complained about the noisy neighbor." (instead of "I made a complain")

Context-rich examples: wrong → right (work, school, casual)

Small edits - changing complain → complaint or removing a and using complained - fix most slips. Choose the version that matches your tone.

Work - Wrong: "Please log a complain about the supplier." →
Right: "Please log a complaint about the supplier."
Work - Wrong: "They have put a restrain on refunds." →
Right: "They have placed a restraint on refunds." or "They have restrained refunds."
School - Wrong: "The principal filed a complain about attendance." →
Right: "The principal filed a complaint about attendance."
School - Wrong: "The coach put a restrain on drills." →
Right: "The coach restrained players during drills." or "The coach imposed a restraint on drills."
Casual - Wrong: "I made a complain about the party noise." →
Right: "I complained about the party noise."
Casual - Wrong: "He showed a restrain and didn't react." →
Right: "He showed restraint and didn't react."
General - Wrong: "We did a complain to the vendor." → Right: "We made a complaint to the vendor." or "We complained to the vendor."

Memory trick - the two quick tests

Use the mnemonic "Count it or do it." If you can count it (one complaint), it's a noun. If it's something you do (I complain), it's a verb.

Count test: try putting a number before the word. If "one X" makes sense, use the noun.
Action test: if the sentence describes behavior, use the verb and drop the article.
Make/submit/file test: these verbs expect a noun after "a" - use "a complaint."

Try your own sentence

Test the whole sentence rather than the phrase. Context usually makes the correct choice obvious.

Grammar, hyphenation, and spacing notes (compact)

Hyphenation: compound adjectives from these words may be hyphenated (self-restrained, self-restraint as a noun). That doesn't make "a complain" correct.

Spacing & punctuation: after swapping complain → complaint or removing a, check punctuation, tense, and subject agreement so the sentence still flows.

Adjective forms: "self-restrained" (adjective) vs "self-restraint" (noun).
Noun plurals: complaint → complaints; restraint → restraints.
Read the sentence aloud after edits to catch agreement or article slips.

Good: "Her self-restraint prevented an argument."
Bad spacing: "She complained(and left)." → Fix: "She complained (and left)."

Similar mistakes to watch for

The same error appears with other verb-noun pairs. When you see "a + base verb," check whether the noun form is required.

Common trouble pairs: decide → decision, respond → response, complain → complaint, restrain → restraint.

Wrong: "She made a decide." →
Right: "She made a decision."
Wrong: "He gave a respond." →
Right: "He gave a response."
Wrong: "They did a complain." →
Right: "They made a complaint." or "They complained."

FAQ

Should I write "a complain" or "a complaint"?

Use "a complaint." "A complain" is incorrect because complain is a verb. If you mean the action, use the verb without an article: "I complained."

Is "a restrain" ever correct?

No. The correct noun is "a restraint." Use "restrain" as a verb (they restrained him) and "a restraint" when you need a noun.

Can I say "make a complain" in a formal email?

No. Use "make a complaint," "file a complaint," or "submit a complaint." For immediate action you can write "I complained to..."

How do I decide between "complained" and "filed a complaint"?

"Complained" describes the act of expressing dissatisfaction. "Filed a complaint" implies a formal, recorded step, often with documentation or a system log.

What quick proofreading trick prevents this error?

Use the "count it or do it" test: if a number fits before the word, use the noun; if the sentence describes behavior, use the verb and drop a.

Want a quick proof? One easy next step

When in doubt, paste the sentence into a grammar checker or use the two quick tests above. For formal reports use the noun form; for conversational notes use the verb.

Formal logs: "file a complaint," "place a restraint."
Informal writing: "I complained," "He restrained himself."
Quick shortcut: copy a correct example above and adjust names/dates to avoid the error.