could excavate
Verbe régulier : excavate - excavated- excavated
Traduction française : creuser - mettre au jour 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could excavate
you could excavate
she could excavate
we could excavate
you could excavate
they could excavate 	I could be excavating
you could be excavating
she could be excavating
we could be excavating
you could be excavating
they could be excavating	I could have excavated
you could have excavated
she could have excavated
we could have excavated
you could have excavated
they could have excavated	I could have been excavating
you could have been excavating
she could have been excavating
we could have been excavating
you could have been excavating
they could have been excavating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't excavate
you couldn't excavate
she couldn't excavate
we couldn't excavate
you couldn't excavate
they couldn't excavate 	I couldn't be excavating
you couldn't be excavating
she couldn't be excavating
we couldn't be excavating
you couldn't be excavating
they couldn't be excavating	I couldn't have excavated
you couldn't have excavated
she couldn't have excavated
we couldn't have excavated
you couldn't have excavated
they couldn't have excavated	I couldn't have been excavating
you couldn't have been excavating
she couldn't have been excavating
we couldn't have been excavating
you couldn't have been excavating
they couldn't have been excavating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I excavate?
could you excavate?
could she excavate?
could we excavate?
could you excavate?
could they excavate? 	could I be excavating?
could you be excavating?
could she be excavating?
could we be excavating?
could you be excavating?
could they be excavating? 	could I have excavated?
could you have excavated?
could she have excavated?
could we have excavated?
could you have excavated?
could they have excavated? 	could I have been excavating?
could you have been excavating?
could she have been excavating?
could we have been excavating?
could you have been excavating?
could they have been excavating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I excavate?
couldn't you excavate?
couldn't she excavate?
couldn't we excavate?
couldn't you excavate?
couldn't they excavate? 	couldn't I be excavating?
couldn't you be excavating?
couldn't she be excavating?
couldn't we be excavating?
couldn't you be excavating?
couldn't they be excavating? 	couldn't I have excavated?
couldn't you have excavated?
couldn't she have excavated?
couldn't we have excavated?
couldn't you have excavated?
couldn't they have excavated? 	couldn't I have been excavating?
couldn't you have been excavating?
couldn't she have been excavating?
couldn't we have been excavating?
couldn't you have been excavating?
couldn't they have been excavating?