I could preinvestigate you could preinvestigate she could preinvestigate we could preinvestigate you could preinvestigate they could preinvestigate
Forme en V-ing
I could be preinvestigating you could be preinvestigating she could be preinvestigating we could be preinvestigating you could be preinvestigating they could be preinvestigating
Perfect
I could have preinvestigated you could have preinvestigated she could have preinvestigated we could have preinvestigated you could have preinvestigated they could have preinvestigated
Perfect en V-ing
I could have been preinvestigating you could have been preinvestigating she could have been preinvestigating we could have been preinvestigating you could have been preinvestigating they could have been preinvestigating
Négation
Forme simple
I could not preinvestigate you could not preinvestigate she could not preinvestigate we could not preinvestigate you could not preinvestigate they could not preinvestigate
Forme en V-ing
I could not be preinvestigating you could not be preinvestigating she could not be preinvestigating we could not be preinvestigating you could not be preinvestigating they could not be preinvestigating
Perfect
I could not have preinvestigated you could not have preinvestigated she could not have preinvestigated we could not have preinvestigated you could not have preinvestigated they could not have preinvestigated
Perfect en V-ing
I could not have been preinvestigating you could not have been preinvestigating she could not have been preinvestigating we could not have been preinvestigating you could not have been preinvestigating they could not have been preinvestigating
Forme interrogative
Forme simple
could I preinvestigate? could you preinvestigate? could she preinvestigate? could we preinvestigate? could you preinvestigate? could they preinvestigate?
Forme en V-ing
could I be preinvestigating? could you be preinvestigating? could she be preinvestigating? could we be preinvestigating? could you be preinvestigating? could they be preinvestigating?
Perfect
could I have preinvestigated? could you have preinvestigated? could she have preinvestigated? could we have preinvestigated? could you have preinvestigated? could they have preinvestigated?
Perfect en V-ing
could I have been preinvestigating? could you have been preinvestigating? could she have been preinvestigating? could we have been preinvestigating? could you have been preinvestigating? could they have been preinvestigating?
Forme interro-négative
Forme simple
could I not preinvestigate? could you not preinvestigate? could she not preinvestigate? could we not preinvestigate? could you not preinvestigate? could they not preinvestigate?
Forme en V-ing
could I not be preinvestigating? could you not be preinvestigating? could she not be preinvestigating? could we not be preinvestigating? could you not be preinvestigating? could they not be preinvestigating?
Perfect
could I not have preinvestigated? could you not have preinvestigated? could she not have preinvestigated? could we not have preinvestigated? could you not have preinvestigated? could they not have preinvestigated?
Perfect en V-ing
could I not have been preinvestigating? could you not have been preinvestigating? could she not have been preinvestigating? could we not have been preinvestigating? could you not have been preinvestigating? could they not have been preinvestigating?