could prebid
Irregular verb: prebid - prebid- prebid

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prebid
you could prebid
she could prebid
we could prebid
you could prebid
they could prebid 	I could be prebiding
you could be prebiding
she could be prebiding
we could be prebiding
you could be prebiding
they could be prebiding	I could have prebid
you could have prebid
she could have prebid
we could have prebid
you could have prebid
they could have prebid	I could have been prebiding
you could have been prebiding
she could have been prebiding
we could have been prebiding
you could have been prebiding
they could have been prebiding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prebid
you couldn't prebid
she couldn't prebid
we couldn't prebid
you couldn't prebid
they couldn't prebid 	I couldn't be prebiding
you couldn't be prebiding
she couldn't be prebiding
we couldn't be prebiding
you couldn't be prebiding
they couldn't be prebiding	I couldn't have prebid
you couldn't have prebid
she couldn't have prebid
we couldn't have prebid
you couldn't have prebid
they couldn't have prebid	I couldn't have been prebiding
you couldn't have been prebiding
she couldn't have been prebiding
we couldn't have been prebiding
you couldn't have been prebiding
they couldn't have been prebiding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prebid?
could you prebid?
could she prebid?
could we prebid?
could you prebid?
could they prebid? 	could I be prebiding?
could you be prebiding?
could she be prebiding?
could we be prebiding?
could you be prebiding?
could they be prebiding? 	could I have prebid?
could you have prebid?
could she have prebid?
could we have prebid?
could you have prebid?
could they have prebid? 	could I have been prebiding?
could you have been prebiding?
could she have been prebiding?
could we have been prebiding?
could you have been prebiding?
could they have been prebiding? 	

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