I am not very good with verbs.The verb in that sentence is am. It expresses a state of being. That state of being is your facility with verbs.
I am not sure how they work.Again, am expresses a state of being: your uncertainty.
I have a grammer test on Monday 29th Jan., and I don't have a clue where to start.The word have often indicates possession, but the first have indicates something you are anticipating. The second have does indicate possession.
I wasn't able to ask for help because I have been working all week.There are two verbs in that sentence. The word was is a form of to be, and it indicates a state of being. The state of being in this case is your ability to ask for help. The word ask is an active verb meaning to make a request.
Student or Learner