could underbid
Verbe irrégulier : underbid - underbid- underbid

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could underbid
you could underbid
she could underbid
we could underbid
you could underbid
they could underbid 	I could be underbidding
you could be underbidding
she could be underbidding
we could be underbidding
you could be underbidding
they could be underbidding	I could have underbid
you could have underbid
she could have underbid
we could have underbid
you could have underbid
they could have underbid	I could have been underbidding
you could have been underbidding
she could have been underbidding
we could have been underbidding
you could have been underbidding
they could have been underbidding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not underbid
you could not underbid
she could not underbid
we could not underbid
you could not underbid
they could not underbid 	I could not be underbidding
you could not be underbidding
she could not be underbidding
we could not be underbidding
you could not be underbidding
they could not be underbidding	I could not have underbid
you could not have underbid
she could not have underbid
we could not have underbid
you could not have underbid
they could not have underbid	I could not have been underbidding
you could not have been underbidding
she could not have been underbidding
we could not have been underbidding
you could not have been underbidding
they could not have been underbidding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I underbid?
could you underbid?
could she underbid?
could we underbid?
could you underbid?
could they underbid? 	could I be underbidding?
could you be underbidding?
could she be underbidding?
could we be underbidding?
could you be underbidding?
could they be underbidding? 	could I have underbid?
could you have underbid?
could she have underbid?
could we have underbid?
could you have underbid?
could they have underbid? 	could I have been underbidding?
could you have been underbidding?
could she have been underbidding?
could we have been underbidding?
could you have been underbidding?
could they have been underbidding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not underbid?
could you not underbid?
could she not underbid?
could we not underbid?
could you not underbid?
could they not underbid? 	could I not be underbidding?
could you not be underbidding?
could she not be underbidding?
could we not be underbidding?
could you not be underbidding?
could they not be underbidding? 	could I not have underbid?
could you not have underbid?
could she not have underbid?
could we not have underbid?
could you not have underbid?
could they not have underbid? 	could I not have been underbidding?
could you not have been underbidding?
could she not have been underbidding?
could we not have been underbidding?
could you not have been underbidding?
could they not have been underbidding?