I could aerate you could aerate he could aerate we could aerate you could aerate they could aerate
Forme en V-ing
I could be aerating you could be aerating he could be aerating we could be aerating you could be aerating they could be aerating
Perfect
I could have aerated you could have aerated he could have aerated we could have aerated you could have aerated they could have aerated
Perfect en V-ing
I could have been aerating you could have been aerating he could have been aerating we could have been aerating you could have been aerating they could have been aerating
Négation
Forme simple
I could not aerate you could not aerate he could not aerate we could not aerate you could not aerate they could not aerate
Forme en V-ing
I could not be aerating you could not be aerating he could not be aerating we could not be aerating you could not be aerating they could not be aerating
Perfect
I could not have aerated you could not have aerated he could not have aerated we could not have aerated you could not have aerated they could not have aerated
Perfect en V-ing
I could not have been aerating you could not have been aerating he could not have been aerating we could not have been aerating you could not have been aerating they could not have been aerating
Forme interrogative
Forme simple
could I aerate? could you aerate? could he aerate? could we aerate? could you aerate? could they aerate?
Forme en V-ing
could I be aerating? could you be aerating? could he be aerating? could we be aerating? could you be aerating? could they be aerating?
Perfect
could I have aerated? could you have aerated? could he have aerated? could we have aerated? could you have aerated? could they have aerated?
Perfect en V-ing
could I have been aerating? could you have been aerating? could he have been aerating? could we have been aerating? could you have been aerating? could they have been aerating?
Forme interro-négative
Forme simple
could I not aerate? could you not aerate? could he not aerate? could we not aerate? could you not aerate? could they not aerate?
Forme en V-ing
could I not be aerating? could you not be aerating? could he not be aerating? could we not be aerating? could you not be aerating? could they not be aerating?
Perfect
could I not have aerated? could you not have aerated? could he not have aerated? could we not have aerated? could you not have aerated? could they not have aerated?
Perfect en V-ing
could I not have been aerating? could you not have been aerating? could he not have been aerating? could we not have been aerating? could you not have been aerating? could they not have been aerating?