How to Use "Complain" with Example Sentences

complain (v): to say that you are not happy about something

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Used with adverbs:

"He loudly complained about the bad service."
(loudly, openly, publicly)

"The workers often complain about their paychecks."
(often, frequently, constantly)

"She repeatedly complained about her neighbor's noise."
(repeatedly)

"She privately complained to the waiter."
(privately)

Used with prepositions:

"The neighbors below us complain about everything."
(about, of)

"He likes to complain at every little thing."
(at)

"Please complain to the manager if anything is wrong."
(to)