I could overacheive you could overacheive she could overacheive we could overacheive you could overacheive they could overacheive
Forme en V-ing
I could be overacheiving you could be overacheiving she could be overacheiving we could be overacheiving you could be overacheiving they could be overacheiving
Perfect
I could have overacheived you could have overacheived she could have overacheived we could have overacheived you could have overacheived they could have overacheived
Perfect en V-ing
I could have been overacheiving you could have been overacheiving she could have been overacheiving we could have been overacheiving you could have been overacheiving they could have been overacheiving
Négation
Forme simple
I could not overacheive you could not overacheive she could not overacheive we could not overacheive you could not overacheive they could not overacheive
Forme en V-ing
I could not be overacheiving you could not be overacheiving she could not be overacheiving we could not be overacheiving you could not be overacheiving they could not be overacheiving
Perfect
I could not have overacheived you could not have overacheived she could not have overacheived we could not have overacheived you could not have overacheived they could not have overacheived
Perfect en V-ing
I could not have been overacheiving you could not have been overacheiving she could not have been overacheiving we could not have been overacheiving you could not have been overacheiving they could not have been overacheiving
Forme interrogative
Forme simple
could I overacheive? could you overacheive? could she overacheive? could we overacheive? could you overacheive? could they overacheive?
Forme en V-ing
could I be overacheiving? could you be overacheiving? could she be overacheiving? could we be overacheiving? could you be overacheiving? could they be overacheiving?
Perfect
could I have overacheived? could you have overacheived? could she have overacheived? could we have overacheived? could you have overacheived? could they have overacheived?
Perfect en V-ing
could I have been overacheiving? could you have been overacheiving? could she have been overacheiving? could we have been overacheiving? could you have been overacheiving? could they have been overacheiving?
Forme interro-négative
Forme simple
could I not overacheive? could you not overacheive? could she not overacheive? could we not overacheive? could you not overacheive? could they not overacheive?
Forme en V-ing
could I not be overacheiving? could you not be overacheiving? could she not be overacheiving? could we not be overacheiving? could you not be overacheiving? could they not be overacheiving?
Perfect
could I not have overacheived? could you not have overacheived? could she not have overacheived? could we not have overacheived? could you not have overacheived? could they not have overacheived?
Perfect en V-ing
could I not have been overacheiving? could you not have been overacheiving? could she not have been overacheiving? could we not have been overacheiving? could you not have been overacheiving? could they not have been overacheiving?