could becalm
Regular verb: becalm - becalmed- becalmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could becalm
you could becalm
she could becalm
we could becalm
you could becalm
they could becalm 	I could be becalming
you could be becalming
she could be becalming
we could be becalming
you could be becalming
they could be becalming	I could have becalmed
you could have becalmed
she could have becalmed
we could have becalmed
you could have becalmed
they could have becalmed	I could have been becalming
you could have been becalming
she could have been becalming
we could have been becalming
you could have been becalming
they could have been becalming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't becalm
you couldn't becalm
she couldn't becalm
we couldn't becalm
you couldn't becalm
they couldn't becalm 	I couldn't be becalming
you couldn't be becalming
she couldn't be becalming
we couldn't be becalming
you couldn't be becalming
they couldn't be becalming	I couldn't have becalmed
you couldn't have becalmed
she couldn't have becalmed
we couldn't have becalmed
you couldn't have becalmed
they couldn't have becalmed	I couldn't have been becalming
you couldn't have been becalming
she couldn't have been becalming
we couldn't have been becalming
you couldn't have been becalming
they couldn't have been becalming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I becalm?
could you becalm?
could she becalm?
could we becalm?
could you becalm?
could they becalm? 	could I be becalming?
could you be becalming?
could she be becalming?
could we be becalming?
could you be becalming?
could they be becalming? 	could I have becalmed?
could you have becalmed?
could she have becalmed?
could we have becalmed?
could you have becalmed?
could they have becalmed? 	could I have been becalming?
could you have been becalming?
could she have been becalming?
could we have been becalming?
could you have been becalming?
could they have been becalming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I becalm?
couldn't you becalm?
couldn't she becalm?
couldn't we becalm?
couldn't you becalm?
couldn't they becalm? 	couldn't I be becalming?
couldn't you be becalming?
couldn't she be becalming?
couldn't we be becalming?
couldn't you be becalming?
couldn't they be becalming? 	couldn't I have becalmed?
couldn't you have becalmed?
couldn't she have becalmed?
couldn't we have becalmed?
couldn't you have becalmed?
couldn't they have becalmed? 	couldn't I have been becalming?
couldn't you have been becalming?
couldn't she have been becalming?
couldn't we have been becalming?
couldn't you have been becalming?
couldn't they have been becalming?