could rototill
Verbe régulier : rototill - rototilled- rototilled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could rototill
you could rototill
she could rototill
we could rototill
you could rototill
they could rototill 	I could be rototilling
you could be rototilling
she could be rototilling
we could be rototilling
you could be rototilling
they could be rototilling	I could have rototilled
you could have rototilled
she could have rototilled
we could have rototilled
you could have rototilled
they could have rototilled	I could have been rototilling
you could have been rototilling
she could have been rototilling
we could have been rototilling
you could have been rototilling
they could have been rototilling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not rototill
you could not rototill
she could not rototill
we could not rototill
you could not rototill
they could not rototill 	I could not be rototilling
you could not be rototilling
she could not be rototilling
we could not be rototilling
you could not be rototilling
they could not be rototilling	I could not have rototilled
you could not have rototilled
she could not have rototilled
we could not have rototilled
you could not have rototilled
they could not have rototilled	I could not have been rototilling
you could not have been rototilling
she could not have been rototilling
we could not have been rototilling
you could not have been rototilling
they could not have been rototilling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I rototill?
could you rototill?
could she rototill?
could we rototill?
could you rototill?
could they rototill? 	could I be rototilling?
could you be rototilling?
could she be rototilling?
could we be rototilling?
could you be rototilling?
could they be rototilling? 	could I have rototilled?
could you have rototilled?
could she have rototilled?
could we have rototilled?
could you have rototilled?
could they have rototilled? 	could I have been rototilling?
could you have been rototilling?
could she have been rototilling?
could we have been rototilling?
could you have been rototilling?
could they have been rototilling? 	

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