could consternate
Regular verb: consternate - consternated- consternated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could consternate
you could consternate
she could consternate
we could consternate
you could consternate
they could consternate 	I could be consternating
you could be consternating
she could be consternating
we could be consternating
you could be consternating
they could be consternating	I could have consternated
you could have consternated
she could have consternated
we could have consternated
you could have consternated
they could have consternated	I could have been consternating
you could have been consternating
she could have been consternating
we could have been consternating
you could have been consternating
they could have been consternating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not consternate
you could not consternate
she could not consternate
we could not consternate
you could not consternate
they could not consternate 	I could not be consternating
you could not be consternating
she could not be consternating
we could not be consternating
you could not be consternating
they could not be consternating	I could not have consternated
you could not have consternated
she could not have consternated
we could not have consternated
you could not have consternated
they could not have consternated	I could not have been consternating
you could not have been consternating
she could not have been consternating
we could not have been consternating
you could not have been consternating
they could not have been consternating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I consternate?
could you consternate?
could she consternate?
could we consternate?
could you consternate?
could they consternate? 	could I be consternating?
could you be consternating?
could she be consternating?
could we be consternating?
could you be consternating?
could they be consternating? 	could I have consternated?
could you have consternated?
could she have consternated?
could we have consternated?
could you have consternated?
could they have consternated? 	could I have been consternating?
could you have been consternating?
could she have been consternating?
could we have been consternating?
could you have been consternating?
could they have been consternating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not consternate?
could you not consternate?
could she not consternate?
could we not consternate?
could you not consternate?
could they not consternate? 	could I not be consternating?
could you not be consternating?
could she not be consternating?
could we not be consternating?
could you not be consternating?
could they not be consternating? 	could I not have consternated?
could you not have consternated?
could she not have consternated?
could we not have consternated?
could you not have consternated?
could they not have consternated? 	could I not have been consternating?
could you not have been consternating?
could she not have been consternating?
could we not have been consternating?
could you not have been consternating?
could they not have been consternating?