I must air-drop you must air-drop she must air-drop we must air-drop you must air-drop they must air-drop
V-ing form
I must be air-droping you must be air-droping she must be air-droping we must be air-droping you must be air-droping they must be air-droping
Perfect
I must have air-droped you must have air-droped she must have air-droped we must have air-droped you must have air-droped they must have air-droped
V-ing perfect
I must have been air-droping you must have been air-droping she must have been air-droping we must have been air-droping you must have been air-droping they must have been air-droping
Negation
Simple form
I mustn't air-drop you mustn't air-drop she mustn't air-drop we mustn't air-drop you mustn't air-drop they mustn't air-drop
V-ing form
I mustn't be air-droping you mustn't be air-droping she mustn't be air-droping we mustn't be air-droping you mustn't be air-droping they mustn't be air-droping
Perfect
I mustn't have air-droped you mustn't have air-droped she mustn't have air-droped we mustn't have air-droped you mustn't have air-droped they mustn't have air-droped
V-ing perfect
I mustn't have been air-droping you mustn't have been air-droping she mustn't have been air-droping we mustn't have been air-droping you mustn't have been air-droping they mustn't have been air-droping
Interrogative form
Simple form
must I air-drop? must you air-drop? must she air-drop? must we air-drop? must you air-drop? must they air-drop?
V-ing form
must I be air-droping? must you be air-droping? must she be air-droping? must we be air-droping? must you be air-droping? must they be air-droping?
Perfect
must I have air-droped? must you have air-droped? must she have air-droped? must we have air-droped? must you have air-droped? must they have air-droped?
V-ing perfect
must I have been air-droping? must you have been air-droping? must she have been air-droping? must we have been air-droping? must you have been air-droping? must they have been air-droping?
Interro-negative form
Simple form
mustn't I air-drop? mustn't you air-drop? mustn't she air-drop? mustn't we air-drop? mustn't you air-drop? mustn't they air-drop?
V-ing form
mustn't I be air-droping? mustn't you be air-droping? mustn't she be air-droping? mustn't we be air-droping? mustn't you be air-droping? mustn't they be air-droping?
Perfect
mustn't I have air-droped? mustn't you have air-droped? mustn't she have air-droped? mustn't we have air-droped? mustn't you have air-droped? mustn't they have air-droped?
V-ing perfect
mustn't I have been air-droping? mustn't you have been air-droping? mustn't she have been air-droping? mustn't we have been air-droping? mustn't you have been air-droping? mustn't they have been air-droping?