can mound
Regular verb: mound - mounded- mounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can mound
you can mound
he can mound
we can mound
you can mound
they can mound 	I can be mounding
you can be mounding
he can be mounding
we can be mounding
you can be mounding
they can be mounding	I can have mounded
you can have mounded
he can have mounded
we can have mounded
you can have mounded
they can have mounded	I can have been mounding
you can have been mounding
he can have been mounding
we can have been mounding
you can have been mounding
they can have been mounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot mound
you cannot mound
he cannot mound
we cannot mound
you cannot mound
they cannot mound 	I cannot be mounding
you cannot be mounding
he cannot be mounding
we cannot be mounding
you cannot be mounding
they cannot be mounding	I cannot have mounded
you cannot have mounded
he cannot have mounded
we cannot have mounded
you cannot have mounded
they cannot have mounded	I cannot have been mounding
you cannot have been mounding
he cannot have been mounding
we cannot have been mounding
you cannot have been mounding
they cannot have been mounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I mound?
can you mound?
can he mound?
can we mound?
can you mound?
can they mound? 	can I be mounding?
can you be mounding?
can he be mounding?
can we be mounding?
can you be mounding?
can they be mounding? 	can I have mounded?
can you have mounded?
can he have mounded?
can we have mounded?
can you have mounded?
can they have mounded? 	can I have been mounding?
can you have been mounding?
can he have been mounding?
can we have been mounding?
can you have been mounding?
can they have been mounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not mound?
can you not mound?
can he not mound?
can we not mound?
can you not mound?
can they not mound? 	can I not be mounding?
can you not be mounding?
can he not be mounding?
can we not be mounding?
can you not be mounding?
can they not be mounding? 	can I not have mounded?
can you not have mounded?
can he not have mounded?
can we not have mounded?
can you not have mounded?
can they not have mounded? 	can I not have been mounding?
can you not have been mounding?
can he not have been mounding?
can we not have been mounding?
can you not have been mounding?
can they not have been mounding?