English verb conjugation
MUST KOSHER

Regular verb: kosher - koshered - koshered

Affirmation

Simple form	V-ing form
I must kosher you must kosher she must kosher we must kosher you must kosher they must kosher	I must be koshering you must be koshering she must be koshering we must be koshering you must be koshering they must be koshering
Perfect	V-ing perfect
I must have koshered you must have koshered she must have koshered we must have koshered you must have koshered they must have koshered	I must have been koshering you must have been koshering she must have been koshering we must have been koshering you must have been koshering they must have been koshering

Negation

Simple form	V-ing form
I mustn't kosher you mustn't kosher she mustn't kosher we mustn't kosher you mustn't kosher they mustn't kosher	I mustn't be koshering you mustn't be koshering she mustn't be koshering we mustn't be koshering you mustn't be koshering they mustn't be koshering
Perfect	V-ing perfect
I mustn't have koshered you mustn't have koshered she mustn't have koshered we mustn't have koshered you mustn't have koshered they mustn't have koshered	I mustn't have been koshering you mustn't have been koshering she mustn't have been koshering we mustn't have been koshering you mustn't have been koshering they mustn't have been koshering

Interrogative form

Simple form	V-ing form
must I kosher? must you kosher? must she kosher? must we kosher? must you kosher? must they kosher?	must I be koshering? must you be koshering? must she be koshering? must we be koshering? must you be koshering? must they be koshering?
Perfect	V-ing perfect
must I have koshered? must you have koshered? must she have koshered? must we have koshered? must you have koshered? must they have koshered?	must I have been koshering? must you have been koshering? must she have been koshering? must we have been koshering? must you have been koshering? must they have been koshering?

Interro-negative form

Simple form	V-ing form
mustn't I kosher? mustn't you kosher? mustn't she kosher? mustn't we kosher? mustn't you kosher? mustn't they kosher?	mustn't I be koshering? mustn't you be koshering? mustn't she be koshering? mustn't we be koshering? mustn't you be koshering? mustn't they be koshering?
Perfect	V-ing perfect
mustn't I have koshered? mustn't you have koshered? mustn't she have koshered? mustn't we have koshered? mustn't you have koshered? mustn't they have koshered?	mustn't I have been koshering? mustn't you have been koshering? mustn't she have been koshering? mustn't we have been koshering? mustn't you have been koshering? mustn't they have been koshering?