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