I must gift-wrap you must gift-wrap he must gift-wrap we must gift-wrap you must gift-wrap they must gift-wrap
V-ing form
I must be gift-wraping you must be gift-wraping he must be gift-wraping we must be gift-wraping you must be gift-wraping they must be gift-wraping
Perfect
I must have gift-wraped you must have gift-wraped he must have gift-wraped we must have gift-wraped you must have gift-wraped they must have gift-wraped
V-ing perfect
I must have been gift-wraping you must have been gift-wraping he must have been gift-wraping we must have been gift-wraping you must have been gift-wraping they must have been gift-wraping
Negation
Simple form
I mustn't gift-wrap you mustn't gift-wrap he mustn't gift-wrap we mustn't gift-wrap you mustn't gift-wrap they mustn't gift-wrap
V-ing form
I mustn't be gift-wraping you mustn't be gift-wraping he mustn't be gift-wraping we mustn't be gift-wraping you mustn't be gift-wraping they mustn't be gift-wraping
Perfect
I mustn't have gift-wraped you mustn't have gift-wraped he mustn't have gift-wraped we mustn't have gift-wraped you mustn't have gift-wraped they mustn't have gift-wraped
V-ing perfect
I mustn't have been gift-wraping you mustn't have been gift-wraping he mustn't have been gift-wraping we mustn't have been gift-wraping you mustn't have been gift-wraping they mustn't have been gift-wraping
Interrogative form
Simple form
must I gift-wrap? must you gift-wrap? must he gift-wrap? must we gift-wrap? must you gift-wrap? must they gift-wrap?
V-ing form
must I be gift-wraping? must you be gift-wraping? must he be gift-wraping? must we be gift-wraping? must you be gift-wraping? must they be gift-wraping?
Perfect
must I have gift-wraped? must you have gift-wraped? must he have gift-wraped? must we have gift-wraped? must you have gift-wraped? must they have gift-wraped?
V-ing perfect
must I have been gift-wraping? must you have been gift-wraping? must he have been gift-wraping? must we have been gift-wraping? must you have been gift-wraping? must they have been gift-wraping?
Interro-negative form
Simple form
mustn't I gift-wrap? mustn't you gift-wrap? mustn't he gift-wrap? mustn't we gift-wrap? mustn't you gift-wrap? mustn't they gift-wrap?
V-ing form
mustn't I be gift-wraping? mustn't you be gift-wraping? mustn't he be gift-wraping? mustn't we be gift-wraping? mustn't you be gift-wraping? mustn't they be gift-wraping?
Perfect
mustn't I have gift-wraped? mustn't you have gift-wraped? mustn't he have gift-wraped? mustn't we have gift-wraped? mustn't you have gift-wraped? mustn't they have gift-wraped?
V-ing perfect
mustn't I have been gift-wraping? mustn't you have been gift-wraping? mustn't he have been gift-wraping? mustn't we have been gift-wraping? mustn't you have been gift-wraping? mustn't they have been gift-wraping?