I could tend you could tend she could tend we could tend you could tend they could tend
Forme en V-ing
I could be tending you could be tending she could be tending we could be tending you could be tending they could be tending
Perfect
I could have tended you could have tended she could have tended we could have tended you could have tended they could have tended
Perfect en V-ing
I could have been tending you could have been tending she could have been tending we could have been tending you could have been tending they could have been tending
Négation
Forme simple
I could not tend you could not tend she could not tend we could not tend you could not tend they could not tend
Forme en V-ing
I could not be tending you could not be tending she could not be tending we could not be tending you could not be tending they could not be tending
Perfect
I could not have tended you could not have tended she could not have tended we could not have tended you could not have tended they could not have tended
Perfect en V-ing
I could not have been tending you could not have been tending she could not have been tending we could not have been tending you could not have been tending they could not have been tending
Forme interrogative
Forme simple
could I tend? could you tend? could she tend? could we tend? could you tend? could they tend?
Forme en V-ing
could I be tending? could you be tending? could she be tending? could we be tending? could you be tending? could they be tending?
Perfect
could I have tended? could you have tended? could she have tended? could we have tended? could you have tended? could they have tended?
Perfect en V-ing
could I have been tending? could you have been tending? could she have been tending? could we have been tending? could you have been tending? could they have been tending?
Forme interro-négative
Forme simple
could I not tend? could you not tend? could she not tend? could we not tend? could you not tend? could they not tend?
Forme en V-ing
could I not be tending? could you not be tending? could she not be tending? could we not be tending? could you not be tending? could they not be tending?
Perfect
could I not have tended? could you not have tended? could she not have tended? could we not have tended? could you not have tended? could they not have tended?
Perfect en V-ing
could I not have been tending? could you not have been tending? could she not have been tending? could we not have been tending? could you not have been tending? could they not have been tending?