I could expand you could expand she could expand we could expand you could expand they could expand
Forme en V-ing
I could be expanding you could be expanding she could be expanding we could be expanding you could be expanding they could be expanding
Perfect
I could have expanded you could have expanded she could have expanded we could have expanded you could have expanded they could have expanded
Perfect en V-ing
I could have been expanding you could have been expanding she could have been expanding we could have been expanding you could have been expanding they could have been expanding
Négation
Forme simple
I could not expand you could not expand she could not expand we could not expand you could not expand they could not expand
Forme en V-ing
I could not be expanding you could not be expanding she could not be expanding we could not be expanding you could not be expanding they could not be expanding
Perfect
I could not have expanded you could not have expanded she could not have expanded we could not have expanded you could not have expanded they could not have expanded
Perfect en V-ing
I could not have been expanding you could not have been expanding she could not have been expanding we could not have been expanding you could not have been expanding they could not have been expanding
Forme interrogative
Forme simple
could I expand? could you expand? could she expand? could we expand? could you expand? could they expand?
Forme en V-ing
could I be expanding? could you be expanding? could she be expanding? could we be expanding? could you be expanding? could they be expanding?
Perfect
could I have expanded? could you have expanded? could she have expanded? could we have expanded? could you have expanded? could they have expanded?
Perfect en V-ing
could I have been expanding? could you have been expanding? could she have been expanding? could we have been expanding? could you have been expanding? could they have been expanding?
Forme interro-négative
Forme simple
could I not expand? could you not expand? could she not expand? could we not expand? could you not expand? could they not expand?
Forme en V-ing
could I not be expanding? could you not be expanding? could she not be expanding? could we not be expanding? could you not be expanding? could they not be expanding?
Perfect
could I not have expanded? could you not have expanded? could she not have expanded? could we not have expanded? could you not have expanded? could they not have expanded?
Perfect en V-ing
could I not have been expanding? could you not have been expanding? could she not have been expanding? could we not have been expanding? could you not have been expanding? could they not have been expanding?