could preadapt
Regular verb: preadapt - preadapted- preadapted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preadapt
you could preadapt
she could preadapt
we could preadapt
you could preadapt
they could preadapt 	I could be preadapting
you could be preadapting
she could be preadapting
we could be preadapting
you could be preadapting
they could be preadapting	I could have preadapted
you could have preadapted
she could have preadapted
we could have preadapted
you could have preadapted
they could have preadapted	I could have been preadapting
you could have been preadapting
she could have been preadapting
we could have been preadapting
you could have been preadapting
they could have been preadapting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't preadapt
you couldn't preadapt
she couldn't preadapt
we couldn't preadapt
you couldn't preadapt
they couldn't preadapt 	I couldn't be preadapting
you couldn't be preadapting
she couldn't be preadapting
we couldn't be preadapting
you couldn't be preadapting
they couldn't be preadapting	I couldn't have preadapted
you couldn't have preadapted
she couldn't have preadapted
we couldn't have preadapted
you couldn't have preadapted
they couldn't have preadapted	I couldn't have been preadapting
you couldn't have been preadapting
she couldn't have been preadapting
we couldn't have been preadapting
you couldn't have been preadapting
they couldn't have been preadapting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preadapt?
could you preadapt?
could she preadapt?
could we preadapt?
could you preadapt?
could they preadapt? 	could I be preadapting?
could you be preadapting?
could she be preadapting?
could we be preadapting?
could you be preadapting?
could they be preadapting? 	could I have preadapted?
could you have preadapted?
could she have preadapted?
could we have preadapted?
could you have preadapted?
could they have preadapted? 	could I have been preadapting?
could you have been preadapting?
could she have been preadapting?
could we have been preadapting?
could you have been preadapting?
could they have been preadapting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I preadapt?
couldn't you preadapt?
couldn't she preadapt?
couldn't we preadapt?
couldn't you preadapt?
couldn't they preadapt? 	couldn't I be preadapting?
couldn't you be preadapting?
couldn't she be preadapting?
couldn't we be preadapting?
couldn't you be preadapting?
couldn't they be preadapting? 	couldn't I have preadapted?
couldn't you have preadapted?
couldn't she have preadapted?
couldn't we have preadapted?
couldn't you have preadapted?
couldn't they have preadapted? 	couldn't I have been preadapting?
couldn't you have been preadapting?
couldn't she have been preadapting?
couldn't we have been preadapting?
couldn't you have been preadapting?
couldn't they have been preadapting?