could pockmark
Regular verb: pockmark - pockmarked- pockmarked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pockmark
you could pockmark
he could pockmark
we could pockmark
you could pockmark
they could pockmark 	I could be pockmarking
you could be pockmarking
he could be pockmarking
we could be pockmarking
you could be pockmarking
they could be pockmarking	I could have pockmarked
you could have pockmarked
he could have pockmarked
we could have pockmarked
you could have pockmarked
they could have pockmarked	I could have been pockmarking
you could have been pockmarking
he could have been pockmarking
we could have been pockmarking
you could have been pockmarking
they could have been pockmarking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not pockmark
you could not pockmark
he could not pockmark
we could not pockmark
you could not pockmark
they could not pockmark 	I could not be pockmarking
you could not be pockmarking
he could not be pockmarking
we could not be pockmarking
you could not be pockmarking
they could not be pockmarking	I could not have pockmarked
you could not have pockmarked
he could not have pockmarked
we could not have pockmarked
you could not have pockmarked
they could not have pockmarked	I could not have been pockmarking
you could not have been pockmarking
he could not have been pockmarking
we could not have been pockmarking
you could not have been pockmarking
they could not have been pockmarking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pockmark?
could you pockmark?
could he pockmark?
could we pockmark?
could you pockmark?
could they pockmark? 	could I be pockmarking?
could you be pockmarking?
could he be pockmarking?
could we be pockmarking?
could you be pockmarking?
could they be pockmarking? 	could I have pockmarked?
could you have pockmarked?
could he have pockmarked?
could we have pockmarked?
could you have pockmarked?
could they have pockmarked? 	could I have been pockmarking?
could you have been pockmarking?
could he have been pockmarking?
could we have been pockmarking?
could you have been pockmarking?
could they have been pockmarking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not pockmark?
could you not pockmark?
could he not pockmark?
could we not pockmark?
could you not pockmark?
could they not pockmark? 	could I not be pockmarking?
could you not be pockmarking?
could he not be pockmarking?
could we not be pockmarking?
could you not be pockmarking?
could they not be pockmarking? 	could I not have pockmarked?
could you not have pockmarked?
could he not have pockmarked?
could we not have pockmarked?
could you not have pockmarked?
could they not have pockmarked? 	could I not have been pockmarking?
could you not have been pockmarking?
could he not have been pockmarking?
could we not have been pockmarking?
could you not have been pockmarking?
could they not have been pockmarking?