I could aerate you could aerate she could aerate we could aerate you could aerate they could aerate
Forme en V-ing
I could be aerating you could be aerating she could be aerating we could be aerating you could be aerating they could be aerating
Perfect
I could have aerated you could have aerated she 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 she could have been aerating we could have been aerating you could have been aerating they could have been aerating
Négation
Forme simple
I couldn't aerate you couldn't aerate she couldn't aerate we couldn't aerate you couldn't aerate they couldn't aerate
Forme en V-ing
I couldn't be aerating you couldn't be aerating she couldn't be aerating we couldn't be aerating you couldn't be aerating they couldn't be aerating
Perfect
I couldn't have aerated you couldn't have aerated she couldn't have aerated we couldn't have aerated you couldn't have aerated they couldn't have aerated
Perfect en V-ing
I couldn't have been aerating you couldn't have been aerating she couldn't have been aerating we couldn't have been aerating you couldn't have been aerating they couldn't have been aerating
Forme interrogative
Forme simple
could I aerate? could you aerate? could she aerate? could we aerate? could you aerate? could they aerate?
Forme en V-ing
could I be aerating? could you be aerating? could she be aerating? could we be aerating? could you be aerating? could they be aerating?
Perfect
could I have aerated? could you have aerated? could she 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 she have been aerating? could we have been aerating? could you have been aerating? could they have been aerating?
Forme interro-négative
Forme simple
couldn't I aerate? couldn't you aerate? couldn't she aerate? couldn't we aerate? couldn't you aerate? couldn't they aerate?
Forme en V-ing
couldn't I be aerating? couldn't you be aerating? couldn't she be aerating? couldn't we be aerating? couldn't you be aerating? couldn't they be aerating?
Perfect
couldn't I have aerated? couldn't you have aerated? couldn't she have aerated? couldn't we have aerated? couldn't you have aerated? couldn't they have aerated?
Perfect en V-ing
couldn't I have been aerating? couldn't you have been aerating? couldn't she have been aerating? couldn't we have been aerating? couldn't you have been aerating? couldn't they have been aerating?