I could lesson you could lesson she could lesson we could lesson you could lesson they could lesson
Forma con V-ing
I could be lessoning you could be lessoning she could be lessoning we could be lessoning you could be lessoning they could be lessoning
Perfecto
I could have lessoned you could have lessoned she could have lessoned we could have lessoned you could have lessoned they could have lessoned
Perfecto con V-ing
I could have been lessoning you could have been lessoning she could have been lessoning we could have been lessoning you could have been lessoning they could have been lessoning
Negación
Forma simple
I couldn't lesson you couldn't lesson she couldn't lesson we couldn't lesson you couldn't lesson they couldn't lesson
Forma con V-ing
I couldn't be lessoning you couldn't be lessoning she couldn't be lessoning we couldn't be lessoning you couldn't be lessoning they couldn't be lessoning
Perfecto
I couldn't have lessoned you couldn't have lessoned she couldn't have lessoned we couldn't have lessoned you couldn't have lessoned they couldn't have lessoned
Perfecto con V-ing
I couldn't have been lessoning you couldn't have been lessoning she couldn't have been lessoning we couldn't have been lessoning you couldn't have been lessoning they couldn't have been lessoning
Forma interrogativa
Forma simple
could I lesson? could you lesson? could she lesson? could we lesson? could you lesson? could they lesson?
Forma con V-ing
could I be lessoning? could you be lessoning? could she be lessoning? could we be lessoning? could you be lessoning? could they be lessoning?
Perfecto
could I have lessoned? could you have lessoned? could she have lessoned? could we have lessoned? could you have lessoned? could they have lessoned?
Perfecto con V-ing
could I have been lessoning? could you have been lessoning? could she have been lessoning? could we have been lessoning? could you have been lessoning? could they have been lessoning?
Forma interro-negativa
Forma simple
couldn't I lesson? couldn't you lesson? couldn't she lesson? couldn't we lesson? couldn't you lesson? couldn't they lesson?
Forma con V-ing
couldn't I be lessoning? couldn't you be lessoning? couldn't she be lessoning? couldn't we be lessoning? couldn't you be lessoning? couldn't they be lessoning?
Perfecto
couldn't I have lessoned? couldn't you have lessoned? couldn't she have lessoned? couldn't we have lessoned? couldn't you have lessoned? couldn't they have lessoned?
Perfecto con V-ing
couldn't I have been lessoning? couldn't you have been lessoning? couldn't she have been lessoning? couldn't we have been lessoning? couldn't you have been lessoning? couldn't they have been lessoning?