could astound
Regular verb: astound - astounded- astounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could astound
you could astound
she could astound
we could astound
you could astound
they could astound 	I could be astounding
you could be astounding
she could be astounding
we could be astounding
you could be astounding
they could be astounding	I could have astounded
you could have astounded
she could have astounded
we could have astounded
you could have astounded
they could have astounded	I could have been astounding
you could have been astounding
she could have been astounding
we could have been astounding
you could have been astounding
they could have been astounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not astound
you could not astound
she could not astound
we could not astound
you could not astound
they could not astound 	I could not be astounding
you could not be astounding
she could not be astounding
we could not be astounding
you could not be astounding
they could not be astounding	I could not have astounded
you could not have astounded
she could not have astounded
we could not have astounded
you could not have astounded
they could not have astounded	I could not have been astounding
you could not have been astounding
she could not have been astounding
we could not have been astounding
you could not have been astounding
they could not have been astounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I astound?
could you astound?
could she astound?
could we astound?
could you astound?
could they astound? 	could I be astounding?
could you be astounding?
could she be astounding?
could we be astounding?
could you be astounding?
could they be astounding? 	could I have astounded?
could you have astounded?
could she have astounded?
could we have astounded?
could you have astounded?
could they have astounded? 	could I have been astounding?
could you have been astounding?
could she have been astounding?
could we have been astounding?
could you have been astounding?
could they have been astounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not astound?
could you not astound?
could she not astound?
could we not astound?
could you not astound?
could they not astound? 	could I not be astounding?
could you not be astounding?
could she not be astounding?
could we not be astounding?
could you not be astounding?
could they not be astounding? 	could I not have astounded?
could you not have astounded?
could she not have astounded?
could we not have astounded?
could you not have astounded?
could they not have astounded? 	could I not have been astounding?
could you not have been astounding?
could she not have been astounding?
could we not have been astounding?
could you not have been astounding?
could they not have been astounding?