To groan is to make a noise while in pain or discomfort. A person also groans when complaining about something.
simple
past
past participle
groan
groaned
groaned
Sheila is groaning about having to work this weekend.
The workers groaned when their break came to an end.
A man groaned in pain as he lay on the sidewalk and waited for an ambulance to arrive.
We could hear sounds of a woman groaning as we passed by a room in the hospital.
Everyone in the bar groaned when their favorite soccer team failed to score a goal.
A muffled groan came from the man who was sitting in the dentist’s office waiting to have a tooth pulled. (The word "groan" is a noun in this sentence.)
What are you groaning about?
There’s no sense in groaning about something that you have no control over.
Please stop your moaning and groaning. (The word "groaning" is a gerund in this sentence.)