English verb conjugation
MUST INSPHERE

Regular verb: insphere - insphered - insphered

Affirmation

Simple form	V-ing form
I must insphere you must insphere he must insphere we must insphere you must insphere they must insphere	I must be insphering you must be insphering he must be insphering we must be insphering you must be insphering they must be insphering
Perfect	V-ing perfect
I must have insphered you must have insphered he must have insphered we must have insphered you must have insphered they must have insphered	I must have been insphering you must have been insphering he must have been insphering we must have been insphering you must have been insphering they must have been insphering

Negation

Simple form	V-ing form
I mustn't insphere you mustn't insphere he mustn't insphere we mustn't insphere you mustn't insphere they mustn't insphere	I mustn't be insphering you mustn't be insphering he mustn't be insphering we mustn't be insphering you mustn't be insphering they mustn't be insphering
Perfect	V-ing perfect
I mustn't have insphered you mustn't have insphered he mustn't have insphered we mustn't have insphered you mustn't have insphered they mustn't have insphered	I mustn't have been insphering you mustn't have been insphering he mustn't have been insphering we mustn't have been insphering you mustn't have been insphering they mustn't have been insphering

Interrogative form

Simple form	V-ing form
must I insphere? must you insphere? must he insphere? must we insphere? must you insphere? must they insphere?	must I be insphering? must you be insphering? must he be insphering? must we be insphering? must you be insphering? must they be insphering?
Perfect	V-ing perfect
must I have insphered? must you have insphered? must he have insphered? must we have insphered? must you have insphered? must they have insphered?	must I have been insphering? must you have been insphering? must he have been insphering? must we have been insphering? must you have been insphering? must they have been insphering?

Interro-negative form

Simple form	V-ing form
mustn't I insphere? mustn't you insphere? mustn't he insphere? mustn't we insphere? mustn't you insphere? mustn't they insphere?	mustn't I be insphering? mustn't you be insphering? mustn't he be insphering? mustn't we be insphering? mustn't you be insphering? mustn't they be insphering?
Perfect	V-ing perfect
mustn't I have insphered? mustn't you have insphered? mustn't he have insphered? mustn't we have insphered? mustn't you have insphered? mustn't they have insphered?	mustn't I have been insphering? mustn't you have been insphering? mustn't he have been insphering? mustn't we have been insphering? mustn't you have been insphering? mustn't they have been insphering?