I must snake you must snake she must snake we must snake you must snake they must snake
Forme en V-ing
I must be snaking you must be snaking she must be snaking we must be snaking you must be snaking they must be snaking
Perfect
I must have snaked you must have snaked she must have snaked we must have snaked you must have snaked they must have snaked
Perfect en V-ing
I must have been snaking you must have been snaking she must have been snaking we must have been snaking you must have been snaking they must have been snaking
Négation
Forme simple
I must not snake you must not snake she must not snake we must not snake you must not snake they must not snake
Forme en V-ing
I must not be snaking you must not be snaking she must not be snaking we must not be snaking you must not be snaking they must not be snaking
Perfect
I must not have snaked you must not have snaked she must not have snaked we must not have snaked you must not have snaked they must not have snaked
Perfect en V-ing
I must not have been snaking you must not have been snaking she must not have been snaking we must not have been snaking you must not have been snaking they must not have been snaking
Forme interrogative
Forme simple
must I snake? must you snake? must she snake? must we snake? must you snake? must they snake?
Forme en V-ing
must I be snaking? must you be snaking? must she be snaking? must we be snaking? must you be snaking? must they be snaking?
Perfect
must I have snaked? must you have snaked? must she have snaked? must we have snaked? must you have snaked? must they have snaked?
Perfect en V-ing
must I have been snaking? must you have been snaking? must she have been snaking? must we have been snaking? must you have been snaking? must they have been snaking?
Forme interro-négative
Forme simple
must I not snake? must you not snake? must she not snake? must we not snake? must you not snake? must they not snake?
Forme en V-ing
must I not be snaking? must you not be snaking? must she not be snaking? must we not be snaking? must you not be snaking? must they not be snaking?
Perfect
must I not have snaked? must you not have snaked? must she not have snaked? must we not have snaked? must you not have snaked? must they not have snaked?
Perfect en V-ing
must I not have been snaking? must you not have been snaking? must she not have been snaking? must we not have been snaking? must you not have been snaking? must they not have been snaking?