I must caracole you must caracole he must caracole we must caracole you must caracole they must caracole
V-ing form
I must be caracoling you must be caracoling he must be caracoling we must be caracoling you must be caracoling they must be caracoling
Perfect
I must have caracoled you must have caracoled he must have caracoled we must have caracoled you must have caracoled they must have caracoled
V-ing perfect
I must have been caracoling you must have been caracoling he must have been caracoling we must have been caracoling you must have been caracoling they must have been caracoling
Negation
Simple form
I mustn't caracole you mustn't caracole he mustn't caracole we mustn't caracole you mustn't caracole they mustn't caracole
V-ing form
I mustn't be caracoling you mustn't be caracoling he mustn't be caracoling we mustn't be caracoling you mustn't be caracoling they mustn't be caracoling
Perfect
I mustn't have caracoled you mustn't have caracoled he mustn't have caracoled we mustn't have caracoled you mustn't have caracoled they mustn't have caracoled
V-ing perfect
I mustn't have been caracoling you mustn't have been caracoling he mustn't have been caracoling we mustn't have been caracoling you mustn't have been caracoling they mustn't have been caracoling
Interrogative form
Simple form
must I caracole? must you caracole? must he caracole? must we caracole? must you caracole? must they caracole?
V-ing form
must I be caracoling? must you be caracoling? must he be caracoling? must we be caracoling? must you be caracoling? must they be caracoling?
Perfect
must I have caracoled? must you have caracoled? must he have caracoled? must we have caracoled? must you have caracoled? must they have caracoled?
V-ing perfect
must I have been caracoling? must you have been caracoling? must he have been caracoling? must we have been caracoling? must you have been caracoling? must they have been caracoling?
Interro-negative form
Simple form
mustn't I caracole? mustn't you caracole? mustn't he caracole? mustn't we caracole? mustn't you caracole? mustn't they caracole?
V-ing form
mustn't I be caracoling? mustn't you be caracoling? mustn't he be caracoling? mustn't we be caracoling? mustn't you be caracoling? mustn't they be caracoling?
Perfect
mustn't I have caracoled? mustn't you have caracoled? mustn't he have caracoled? mustn't we have caracoled? mustn't you have caracoled? mustn't they have caracoled?
V-ing perfect
mustn't I have been caracoling? mustn't you have been caracoling? mustn't he have been caracoling? mustn't we have been caracoling? mustn't you have been caracoling? mustn't they have been caracoling?