English verb conjugation
MUST REGATHER

Regular verb: regather - regathered - regathered

Affirmation

Simple form	V-ing form
I must regather you must regather he must regather we must regather you must regather they must regather	I must be regathering you must be regathering he must be regathering we must be regathering you must be regathering they must be regathering
Perfect	V-ing perfect
I must have regathered you must have regathered he must have regathered we must have regathered you must have regathered they must have regathered	I must have been regathering you must have been regathering he must have been regathering we must have been regathering you must have been regathering they must have been regathering

Negation

Simple form	V-ing form
I mustn't regather you mustn't regather he mustn't regather we mustn't regather you mustn't regather they mustn't regather	I mustn't be regathering you mustn't be regathering he mustn't be regathering we mustn't be regathering you mustn't be regathering they mustn't be regathering
Perfect	V-ing perfect
I mustn't have regathered you mustn't have regathered he mustn't have regathered we mustn't have regathered you mustn't have regathered they mustn't have regathered	I mustn't have been regathering you mustn't have been regathering he mustn't have been regathering we mustn't have been regathering you mustn't have been regathering they mustn't have been regathering

Interrogative form

Simple form	V-ing form
must I regather? must you regather? must he regather? must we regather? must you regather? must they regather?	must I be regathering? must you be regathering? must he be regathering? must we be regathering? must you be regathering? must they be regathering?
Perfect	V-ing perfect
must I have regathered? must you have regathered? must he have regathered? must we have regathered? must you have regathered? must they have regathered?	must I have been regathering? must you have been regathering? must he have been regathering? must we have been regathering? must you have been regathering? must they have been regathering?

Interro-negative form

Simple form	V-ing form
mustn't I regather? mustn't you regather? mustn't he regather? mustn't we regather? mustn't you regather? mustn't they regather?	mustn't I be regathering? mustn't you be regathering? mustn't he be regathering? mustn't we be regathering? mustn't you be regathering? mustn't they be regathering?
Perfect	V-ing perfect
mustn't I have regathered? mustn't you have regathered? mustn't he have regathered? mustn't we have regathered? mustn't you have regathered? mustn't they have regathered?	mustn't I have been regathering? mustn't you have been regathering? mustn't he have been regathering? mustn't we have been regathering? mustn't you have been regathering? mustn't they have been regathering?