I must infest you must infest she must infest we must infest you must infest they must infest
Forme en V-ing
I must be infesting you must be infesting she must be infesting we must be infesting you must be infesting they must be infesting
Perfect
I must have infested you must have infested she must have infested we must have infested you must have infested they must have infested
Perfect en V-ing
I must have been infesting you must have been infesting she must have been infesting we must have been infesting you must have been infesting they must have been infesting
Négation
Forme simple
I must not infest you must not infest she must not infest we must not infest you must not infest they must not infest
Forme en V-ing
I must not be infesting you must not be infesting she must not be infesting we must not be infesting you must not be infesting they must not be infesting
Perfect
I must not have infested you must not have infested she must not have infested we must not have infested you must not have infested they must not have infested
Perfect en V-ing
I must not have been infesting you must not have been infesting she must not have been infesting we must not have been infesting you must not have been infesting they must not have been infesting
Forme interrogative
Forme simple
must I infest? must you infest? must she infest? must we infest? must you infest? must they infest?
Forme en V-ing
must I be infesting? must you be infesting? must she be infesting? must we be infesting? must you be infesting? must they be infesting?
Perfect
must I have infested? must you have infested? must she have infested? must we have infested? must you have infested? must they have infested?
Perfect en V-ing
must I have been infesting? must you have been infesting? must she have been infesting? must we have been infesting? must you have been infesting? must they have been infesting?
Forme interro-négative
Forme simple
must I not infest? must you not infest? must she not infest? must we not infest? must you not infest? must they not infest?
Forme en V-ing
must I not be infesting? must you not be infesting? must she not be infesting? must we not be infesting? must you not be infesting? must they not be infesting?
Perfect
must I not have infested? must you not have infested? must she not have infested? must we not have infested? must you not have infested? must they not have infested?
Perfect en V-ing
must I not have been infesting? must you not have been infesting? must she not have been infesting? must we not have been infesting? must you not have been infesting? must they not have been infesting?