I must gutter you must gutter he must gutter we must gutter you must gutter they must gutter
Forme en V-ing
I must be guttering you must be guttering he must be guttering we must be guttering you must be guttering they must be guttering
Perfect
I must have guttered you must have guttered he must have guttered we must have guttered you must have guttered they must have guttered
Perfect en V-ing
I must have been guttering you must have been guttering he must have been guttering we must have been guttering you must have been guttering they must have been guttering
Négation
Forme simple
I must not gutter you must not gutter he must not gutter we must not gutter you must not gutter they must not gutter
Forme en V-ing
I must not be guttering you must not be guttering he must not be guttering we must not be guttering you must not be guttering they must not be guttering
Perfect
I must not have guttered you must not have guttered he must not have guttered we must not have guttered you must not have guttered they must not have guttered
Perfect en V-ing
I must not have been guttering you must not have been guttering he must not have been guttering we must not have been guttering you must not have been guttering they must not have been guttering
Forme interrogative
Forme simple
must I gutter? must you gutter? must he gutter? must we gutter? must you gutter? must they gutter?
Forme en V-ing
must I be guttering? must you be guttering? must he be guttering? must we be guttering? must you be guttering? must they be guttering?
Perfect
must I have guttered? must you have guttered? must he have guttered? must we have guttered? must you have guttered? must they have guttered?
Perfect en V-ing
must I have been guttering? must you have been guttering? must he have been guttering? must we have been guttering? must you have been guttering? must they have been guttering?
Forme interro-négative
Forme simple
must I not gutter? must you not gutter? must he not gutter? must we not gutter? must you not gutter? must they not gutter?
Forme en V-ing
must I not be guttering? must you not be guttering? must he not be guttering? must we not be guttering? must you not be guttering? must they not be guttering?
Perfect
must I not have guttered? must you not have guttered? must he not have guttered? must we not have guttered? must you not have guttered? must they not have guttered?
Perfect en V-ing
must I not have been guttering? must you not have been guttering? must he not have been guttering? must we not have been guttering? must you not have been guttering? must they not have been guttering?