complain _verb

ADVERBS

always
・English people are always complaining about the weather – it’s always too cold or too hot.

bitterly 
・My grandfather’s always complaining bitterly about how expensive things are.

loudly
・The kids were complaining loudly about the heat.

constantly
・She is constantly complaining about her job.

formally, officially
・The club has officially complained about the referee’s decision.

publicly
・People were unhappy with the government, but did not dare to complain publicly.

PREPOSITIONS

about
・There’s no point complaining about the weather.

to
・She complained to her boss about the behaviour of a colleague.

of 
・She went to bed early, complaining of a headache.

PHRASES

I can’t complain 
・My job is pretty easy, so I can’t complain.

be the first to complain 
・He’s the first to complain if he thinks something is unfair.

have (good) reason to complain
・We felt we had good reason to complain about the food at the hotel.

have little/no reason to complain
・The school is good and parents have little reason to complain.

have cause to complain 
・Patients sometimes have cause to complain about their treatment.

sb is in no position to complain, sb can hardly complain 
・He caused the problem himself, so he’s in no position to complain.