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 must not insphere you must not insphere he must not insphere we must not insphere you must not insphere they must not insphere	I must not be insphering you must not be insphering he must not be insphering we must not be insphering you must not be insphering they must not be insphering
Perfect	V-ing perfect
I must not have insphered you must not have insphered he must not have insphered we must not have insphered you must not have insphered they must not have insphered	I must not have been insphering you must not have been insphering he must not have been insphering we must not have been insphering you must not have been insphering they must not 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
must I not insphere? must you not insphere? must he not insphere? must we not insphere? must you not insphere? must they not insphere?	must I not be insphering? must you not be insphering? must he not be insphering? must we not be insphering? must you not be insphering? must they not be insphering?
Perfect	V-ing perfect
must I not have insphered? must you not have insphered? must he not have insphered? must we not have insphered? must you not have insphered? must they not have insphered?	must I not have been insphering? must you not have been insphering? must he not have been insphering? must we not have been insphering? must you not have been insphering? must they not have been insphering?