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