Conjugaison du verbe anglais
COULD PREINVESTIGATE

Verbe régulier : preinvestigate - preinvestigated - preinvestigated

Affirmation

Forme simple	Forme en V-ing
I could preinvestigate you could preinvestigate he could preinvestigate we could preinvestigate you could preinvestigate they could preinvestigate	I could be preinvestigating you could be preinvestigating he could be preinvestigating we could be preinvestigating you could be preinvestigating they could be preinvestigating
Perfect	Perfect en V-ing
I could have preinvestigated you could have preinvestigated he could have preinvestigated we could have preinvestigated you could have preinvestigated they could have preinvestigated	I could have been preinvestigating you could have been preinvestigating he could have been preinvestigating we could have been preinvestigating you could have been preinvestigating they could have been preinvestigating

Négation

Forme simple	Forme en V-ing
I could not preinvestigate you could not preinvestigate he could not preinvestigate we could not preinvestigate you could not preinvestigate they could not preinvestigate	I could not be preinvestigating you could not be preinvestigating he could not be preinvestigating we could not be preinvestigating you could not be preinvestigating they could not be preinvestigating
Perfect	Perfect en V-ing
I could not have preinvestigated you could not have preinvestigated he could not have preinvestigated we could not have preinvestigated you could not have preinvestigated they could not have preinvestigated	I could not have been preinvestigating you could not have been preinvestigating he 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	Forme en V-ing
could I preinvestigate? could you preinvestigate? could he preinvestigate? could we preinvestigate? could you preinvestigate? could they preinvestigate?	could I be preinvestigating? could you be preinvestigating? could he be preinvestigating? could we be preinvestigating? could you be preinvestigating? could they be preinvestigating?
Perfect	Perfect en V-ing
could I have preinvestigated? could you have preinvestigated? could he have preinvestigated? could we have preinvestigated? could you have preinvestigated? could they have preinvestigated?	could I have been preinvestigating? could you have been preinvestigating? could he have been preinvestigating? could we have been preinvestigating? could you have been preinvestigating? could they have been preinvestigating?

Forme interro-négative

Forme simple	Forme en V-ing
could I not preinvestigate? could you not preinvestigate? could he not preinvestigate? could we not preinvestigate? could you not preinvestigate? could they not preinvestigate?	could I not be preinvestigating? could you not be preinvestigating? could he not be preinvestigating? could we not be preinvestigating? could you not be preinvestigating? could they not be preinvestigating?
Perfect	Perfect en V-ing
could I not have preinvestigated? could you not have preinvestigated? could he not have preinvestigated? could we not have preinvestigated? could you not have preinvestigated? could they not have preinvestigated?	could I not have been preinvestigating? could you not have been preinvestigating? could he not have been preinvestigating? could we not have been preinvestigating? could you not have been preinvestigating? could they not have been preinvestigating?