I could fertilise you could fertilise he could fertilise we could fertilise you could fertilise they could fertilise
Forme en V-ing
I could be fertilising you could be fertilising he could be fertilising we could be fertilising you could be fertilising they could be fertilising
Perfect
I could have fertilised you could have fertilised he could have fertilised we could have fertilised you could have fertilised they could have fertilised
Perfect en V-ing
I could have been fertilising you could have been fertilising he could have been fertilising we could have been fertilising you could have been fertilising they could have been fertilising
Négation
Forme simple
I couldn't fertilise you couldn't fertilise he couldn't fertilise we couldn't fertilise you couldn't fertilise they couldn't fertilise
Forme en V-ing
I couldn't be fertilising you couldn't be fertilising he couldn't be fertilising we couldn't be fertilising you couldn't be fertilising they couldn't be fertilising
Perfect
I couldn't have fertilised you couldn't have fertilised he couldn't have fertilised we couldn't have fertilised you couldn't have fertilised they couldn't have fertilised
Perfect en V-ing
I couldn't have been fertilising you couldn't have been fertilising he couldn't have been fertilising we couldn't have been fertilising you couldn't have been fertilising they couldn't have been fertilising
Forme interrogative
Forme simple
could I fertilise? could you fertilise? could he fertilise? could we fertilise? could you fertilise? could they fertilise?
Forme en V-ing
could I be fertilising? could you be fertilising? could he be fertilising? could we be fertilising? could you be fertilising? could they be fertilising?
Perfect
could I have fertilised? could you have fertilised? could he have fertilised? could we have fertilised? could you have fertilised? could they have fertilised?
Perfect en V-ing
could I have been fertilising? could you have been fertilising? could he have been fertilising? could we have been fertilising? could you have been fertilising? could they have been fertilising?
Forme interro-négative
Forme simple
couldn't I fertilise? couldn't you fertilise? couldn't he fertilise? couldn't we fertilise? couldn't you fertilise? couldn't they fertilise?
Forme en V-ing
couldn't I be fertilising? couldn't you be fertilising? couldn't he be fertilising? couldn't we be fertilising? couldn't you be fertilising? couldn't they be fertilising?
Perfect
couldn't I have fertilised? couldn't you have fertilised? couldn't he have fertilised? couldn't we have fertilised? couldn't you have fertilised? couldn't they have fertilised?
Perfect en V-ing
couldn't I have been fertilising? couldn't you have been fertilising? couldn't he have been fertilising? couldn't we have been fertilising? couldn't you have been fertilising? couldn't they have been fertilising?