carp about someone or something
to complain about someone or something. You are always carping about all your petty problems at work. Stop carping about Randy!
carp at someone (about someone or something)
to complain to someone about someone or something. Why are you always carping at me about your family? You are always carping at Joan about her brother.
carp at someone or something
to criticize someone or something. Poor Clara is carping at Bill's carelessness again. Please stop carping at me.