could shark
Verbe régulier : shark - sharked- sharked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could shark
you could shark
he could shark
we could shark
you could shark
they could shark 	I could be sharking
you could be sharking
he could be sharking
we could be sharking
you could be sharking
they could be sharking	I could have sharked
you could have sharked
he could have sharked
we could have sharked
you could have sharked
they could have sharked	I could have been sharking
you could have been sharking
he could have been sharking
we could have been sharking
you could have been sharking
they could have been sharking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not shark
you could not shark
he could not shark
we could not shark
you could not shark
they could not shark 	I could not be sharking
you could not be sharking
he could not be sharking
we could not be sharking
you could not be sharking
they could not be sharking	I could not have sharked
you could not have sharked
he could not have sharked
we could not have sharked
you could not have sharked
they could not have sharked	I could not have been sharking
you could not have been sharking
he could not have been sharking
we could not have been sharking
you could not have been sharking
they could not have been sharking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I shark?
could you shark?
could he shark?
could we shark?
could you shark?
could they shark? 	could I be sharking?
could you be sharking?
could he be sharking?
could we be sharking?
could you be sharking?
could they be sharking? 	could I have sharked?
could you have sharked?
could he have sharked?
could we have sharked?
could you have sharked?
could they have sharked? 	could I have been sharking?
could you have been sharking?
could he have been sharking?
could we have been sharking?
could you have been sharking?
could they have been sharking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not shark?
could you not shark?
could he not shark?
could we not shark?
could you not shark?
could they not shark? 	could I not be sharking?
could you not be sharking?
could he not be sharking?
could we not be sharking?
could you not be sharking?
could they not be sharking? 	could I not have sharked?
could you not have sharked?
could he not have sharked?
could we not have sharked?
could you not have sharked?
could they not have sharked? 	could I not have been sharking?
could you not have been sharking?
could he not have been sharking?
could we not have been sharking?
could you not have been sharking?
could they not have been sharking?