I could fertilize you could fertilize she could fertilize we could fertilize you could fertilize they could fertilize
Forme en V-ing
I could be fertilizing you could be fertilizing she could be fertilizing we could be fertilizing you could be fertilizing they could be fertilizing
Perfect
I could have fertilized you could have fertilized she could have fertilized we could have fertilized you could have fertilized they could have fertilized
Perfect en V-ing
I could have been fertilizing you could have been fertilizing she could have been fertilizing we could have been fertilizing you could have been fertilizing they could have been fertilizing
Négation
Forme simple
I could not fertilize you could not fertilize she could not fertilize we could not fertilize you could not fertilize they could not fertilize
Forme en V-ing
I could not be fertilizing you could not be fertilizing she could not be fertilizing we could not be fertilizing you could not be fertilizing they could not be fertilizing
Perfect
I could not have fertilized you could not have fertilized she could not have fertilized we could not have fertilized you could not have fertilized they could not have fertilized
Perfect en V-ing
I could not have been fertilizing you could not have been fertilizing she could not have been fertilizing we could not have been fertilizing you could not have been fertilizing they could not have been fertilizing
Forme interrogative
Forme simple
could I fertilize? could you fertilize? could she fertilize? could we fertilize? could you fertilize? could they fertilize?
Forme en V-ing
could I be fertilizing? could you be fertilizing? could she be fertilizing? could we be fertilizing? could you be fertilizing? could they be fertilizing?
Perfect
could I have fertilized? could you have fertilized? could she have fertilized? could we have fertilized? could you have fertilized? could they have fertilized?
Perfect en V-ing
could I have been fertilizing? could you have been fertilizing? could she have been fertilizing? could we have been fertilizing? could you have been fertilizing? could they have been fertilizing?
Forme interro-négative
Forme simple
could I not fertilize? could you not fertilize? could she not fertilize? could we not fertilize? could you not fertilize? could they not fertilize?
Forme en V-ing
could I not be fertilizing? could you not be fertilizing? could she not be fertilizing? could we not be fertilizing? could you not be fertilizing? could they not be fertilizing?
Perfect
could I not have fertilized? could you not have fertilized? could she not have fertilized? could we not have fertilized? could you not have fertilized? could they not have fertilized?
Perfect en V-ing
could I not have been fertilizing? could you not have been fertilizing? could she not have been fertilizing? could we not have been fertilizing? could you not have been fertilizing? could they not have been fertilizing?