could pound
Regular verb: pound - pounded- pounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pound
you could pound
he could pound
we could pound
you could pound
they could pound 	I could be pounding
you could be pounding
he could be pounding
we could be pounding
you could be pounding
they could be pounding	I could have pounded
you could have pounded
he could have pounded
we could have pounded
you could have pounded
they could have pounded	I could have been pounding
you could have been pounding
he could have been pounding
we could have been pounding
you could have been pounding
they could have been pounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't pound
you couldn't pound
he couldn't pound
we couldn't pound
you couldn't pound
they couldn't pound 	I couldn't be pounding
you couldn't be pounding
he couldn't be pounding
we couldn't be pounding
you couldn't be pounding
they couldn't be pounding	I couldn't have pounded
you couldn't have pounded
he couldn't have pounded
we couldn't have pounded
you couldn't have pounded
they couldn't have pounded	I couldn't have been pounding
you couldn't have been pounding
he couldn't have been pounding
we couldn't have been pounding
you couldn't have been pounding
they couldn't have been pounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pound?
could you pound?
could he pound?
could we pound?
could you pound?
could they pound? 	could I be pounding?
could you be pounding?
could he be pounding?
could we be pounding?
could you be pounding?
could they be pounding? 	could I have pounded?
could you have pounded?
could he have pounded?
could we have pounded?
could you have pounded?
could they have pounded? 	could I have been pounding?
could you have been pounding?
could he have been pounding?
could we have been pounding?
could you have been pounding?
could they have been pounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I pound?
couldn't you pound?
couldn't he pound?
couldn't we pound?
couldn't you pound?
couldn't they pound? 	couldn't I be pounding?
couldn't you be pounding?
couldn't he be pounding?
couldn't we be pounding?
couldn't you be pounding?
couldn't they be pounding? 	couldn't I have pounded?
couldn't you have pounded?
couldn't he have pounded?
couldn't we have pounded?
couldn't you have pounded?
couldn't they have pounded? 	couldn't I have been pounding?
couldn't you have been pounding?
couldn't he have been pounding?
couldn't we have been pounding?
couldn't you have been pounding?
couldn't they have been pounding?