I must slipcover you must slipcover she must slipcover we must slipcover you must slipcover they must slipcover
Forme en V-ing
I must be slipcovering you must be slipcovering she must be slipcovering we must be slipcovering you must be slipcovering they must be slipcovering
Perfect
I must have slipcovered you must have slipcovered she must have slipcovered we must have slipcovered you must have slipcovered they must have slipcovered
Perfect en V-ing
I must have been slipcovering you must have been slipcovering she must have been slipcovering we must have been slipcovering you must have been slipcovering they must have been slipcovering
Négation
Forme simple
I must not slipcover you must not slipcover she must not slipcover we must not slipcover you must not slipcover they must not slipcover
Forme en V-ing
I must not be slipcovering you must not be slipcovering she must not be slipcovering we must not be slipcovering you must not be slipcovering they must not be slipcovering
Perfect
I must not have slipcovered you must not have slipcovered she must not have slipcovered we must not have slipcovered you must not have slipcovered they must not have slipcovered
Perfect en V-ing
I must not have been slipcovering you must not have been slipcovering she must not have been slipcovering we must not have been slipcovering you must not have been slipcovering they must not have been slipcovering
Forme interrogative
Forme simple
must I slipcover? must you slipcover? must she slipcover? must we slipcover? must you slipcover? must they slipcover?
Forme en V-ing
must I be slipcovering? must you be slipcovering? must she be slipcovering? must we be slipcovering? must you be slipcovering? must they be slipcovering?
Perfect
must I have slipcovered? must you have slipcovered? must she have slipcovered? must we have slipcovered? must you have slipcovered? must they have slipcovered?
Perfect en V-ing
must I have been slipcovering? must you have been slipcovering? must she have been slipcovering? must we have been slipcovering? must you have been slipcovering? must they have been slipcovering?
Forme interro-négative
Forme simple
must I not slipcover? must you not slipcover? must she not slipcover? must we not slipcover? must you not slipcover? must they not slipcover?
Forme en V-ing
must I not be slipcovering? must you not be slipcovering? must she not be slipcovering? must we not be slipcovering? must you not be slipcovering? must they not be slipcovering?
Perfect
must I not have slipcovered? must you not have slipcovered? must she not have slipcovered? must we not have slipcovered? must you not have slipcovered? must they not have slipcovered?
Perfect en V-ing
must I not have been slipcovering? must you not have been slipcovering? must she not have been slipcovering? must we not have been slipcovering? must you not have been slipcovering? must they not have been slipcovering?