could megaphone
Regular verb: megaphone - megaphoned- megaphoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could megaphone
you could megaphone
she could megaphone
we could megaphone
you could megaphone
they could megaphone 	I could be megaphoning
you could be megaphoning
she could be megaphoning
we could be megaphoning
you could be megaphoning
they could be megaphoning	I could have megaphoned
you could have megaphoned
she could have megaphoned
we could have megaphoned
you could have megaphoned
they could have megaphoned	I could have been megaphoning
you could have been megaphoning
she could have been megaphoning
we could have been megaphoning
you could have been megaphoning
they could have been megaphoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not megaphone
you could not megaphone
she could not megaphone
we could not megaphone
you could not megaphone
they could not megaphone 	I could not be megaphoning
you could not be megaphoning
she could not be megaphoning
we could not be megaphoning
you could not be megaphoning
they could not be megaphoning	I could not have megaphoned
you could not have megaphoned
she could not have megaphoned
we could not have megaphoned
you could not have megaphoned
they could not have megaphoned	I could not have been megaphoning
you could not have been megaphoning
she could not have been megaphoning
we could not have been megaphoning
you could not have been megaphoning
they could not have been megaphoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I megaphone?
could you megaphone?
could she megaphone?
could we megaphone?
could you megaphone?
could they megaphone? 	could I be megaphoning?
could you be megaphoning?
could she be megaphoning?
could we be megaphoning?
could you be megaphoning?
could they be megaphoning? 	could I have megaphoned?
could you have megaphoned?
could she have megaphoned?
could we have megaphoned?
could you have megaphoned?
could they have megaphoned? 	could I have been megaphoning?
could you have been megaphoning?
could she have been megaphoning?
could we have been megaphoning?
could you have been megaphoning?
could they have been megaphoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not megaphone?
could you not megaphone?
could she not megaphone?
could we not megaphone?
could you not megaphone?
could they not megaphone? 	could I not be megaphoning?
could you not be megaphoning?
could she not be megaphoning?
could we not be megaphoning?
could you not be megaphoning?
could they not be megaphoning? 	could I not have megaphoned?
could you not have megaphoned?
could she not have megaphoned?
could we not have megaphoned?
could you not have megaphoned?
could they not have megaphoned? 	could I not have been megaphoning?
could you not have been megaphoning?
could she not have been megaphoning?
could we not have been megaphoning?
could you not have been megaphoning?
could they not have been megaphoning?