could squirm
Regular verb: squirm - squirmed- squirmed

Affirmation 	
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I could squirm
you could squirm
she could squirm
we could squirm
you could squirm
they could squirm 	I could be squirming
you could be squirming
she could be squirming
we could be squirming
you could be squirming
they could be squirming	I could have squirmed
you could have squirmed
she could have squirmed
we could have squirmed
you could have squirmed
they could have squirmed	I could have been squirming
you could have been squirming
she could have been squirming
we could have been squirming
you could have been squirming
they could have been squirming	

Negation 	
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I couldn't squirm
you couldn't squirm
she couldn't squirm
we couldn't squirm
you couldn't squirm
they couldn't squirm 	I couldn't be squirming
you couldn't be squirming
she couldn't be squirming
we couldn't be squirming
you couldn't be squirming
they couldn't be squirming	I couldn't have squirmed
you couldn't have squirmed
she couldn't have squirmed
we couldn't have squirmed
you couldn't have squirmed
they couldn't have squirmed	I couldn't have been squirming
you couldn't have been squirming
she couldn't have been squirming
we couldn't have been squirming
you couldn't have been squirming
they couldn't have been squirming	

Interrogative form 	
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could I squirm?
could you squirm?
could she squirm?
could we squirm?
could you squirm?
could they squirm? 	could I be squirming?
could you be squirming?
could she be squirming?
could we be squirming?
could you be squirming?
could they be squirming? 	could I have squirmed?
could you have squirmed?
could she have squirmed?
could we have squirmed?
could you have squirmed?
could they have squirmed? 	could I have been squirming?
could you have been squirming?
could she have been squirming?
could we have been squirming?
could you have been squirming?
could they have been squirming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I squirm?
couldn't you squirm?
couldn't she squirm?
couldn't we squirm?
couldn't you squirm?
couldn't they squirm? 	couldn't I be squirming?
couldn't you be squirming?
couldn't she be squirming?
couldn't we be squirming?
couldn't you be squirming?
couldn't they be squirming? 	couldn't I have squirmed?
couldn't you have squirmed?
couldn't she have squirmed?
couldn't we have squirmed?
couldn't you have squirmed?
couldn't they have squirmed? 	couldn't I have been squirming?
couldn't you have been squirming?
couldn't she have been squirming?
couldn't we have been squirming?
couldn't you have been squirming?
couldn't they have been squirming?