could unchoke
Regular verb: unchoke - unchoked- unchoked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could unchoke
you could unchoke
she could unchoke
we could unchoke
you could unchoke
they could unchoke 	I could be unchoking
you could be unchoking
she could be unchoking
we could be unchoking
you could be unchoking
they could be unchoking	I could have unchoked
you could have unchoked
she could have unchoked
we could have unchoked
you could have unchoked
they could have unchoked	I could have been unchoking
you could have been unchoking
she could have been unchoking
we could have been unchoking
you could have been unchoking
they could have been unchoking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't unchoke
you couldn't unchoke
she couldn't unchoke
we couldn't unchoke
you couldn't unchoke
they couldn't unchoke 	I couldn't be unchoking
you couldn't be unchoking
she couldn't be unchoking
we couldn't be unchoking
you couldn't be unchoking
they couldn't be unchoking	I couldn't have unchoked
you couldn't have unchoked
she couldn't have unchoked
we couldn't have unchoked
you couldn't have unchoked
they couldn't have unchoked	I couldn't have been unchoking
you couldn't have been unchoking
she couldn't have been unchoking
we couldn't have been unchoking
you couldn't have been unchoking
they couldn't have been unchoking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I unchoke?
could you unchoke?
could she unchoke?
could we unchoke?
could you unchoke?
could they unchoke? 	could I be unchoking?
could you be unchoking?
could she be unchoking?
could we be unchoking?
could you be unchoking?
could they be unchoking? 	could I have unchoked?
could you have unchoked?
could she have unchoked?
could we have unchoked?
could you have unchoked?
could they have unchoked? 	could I have been unchoking?
could you have been unchoking?
could she have been unchoking?
could we have been unchoking?
could you have been unchoking?
could they have been unchoking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I unchoke?
couldn't you unchoke?
couldn't she unchoke?
couldn't we unchoke?
couldn't you unchoke?
couldn't they unchoke? 	couldn't I be unchoking?
couldn't you be unchoking?
couldn't she be unchoking?
couldn't we be unchoking?
couldn't you be unchoking?
couldn't they be unchoking? 	couldn't I have unchoked?
couldn't you have unchoked?
couldn't she have unchoked?
couldn't we have unchoked?
couldn't you have unchoked?
couldn't they have unchoked? 	couldn't I have been unchoking?
couldn't you have been unchoking?
couldn't she have been unchoking?
couldn't we have been unchoking?
couldn't you have been unchoking?
couldn't they have been unchoking?