English verb conjugation
MUST RETOOL

Regular verb: retool - retooled - retooled

Affirmation

Simple form	V-ing form
I must retool you must retool she must retool we must retool you must retool they must retool	I must be retooling you must be retooling she must be retooling we must be retooling you must be retooling they must be retooling
Perfect	V-ing perfect
I must have retooled you must have retooled she must have retooled we must have retooled you must have retooled they must have retooled	I must have been retooling you must have been retooling she must have been retooling we must have been retooling you must have been retooling they must have been retooling

Negation

Simple form	V-ing form
I mustn't retool you mustn't retool she mustn't retool we mustn't retool you mustn't retool they mustn't retool	I mustn't be retooling you mustn't be retooling she mustn't be retooling we mustn't be retooling you mustn't be retooling they mustn't be retooling
Perfect	V-ing perfect
I mustn't have retooled you mustn't have retooled she mustn't have retooled we mustn't have retooled you mustn't have retooled they mustn't have retooled	I mustn't have been retooling you mustn't have been retooling she mustn't have been retooling we mustn't have been retooling you mustn't have been retooling they mustn't have been retooling

Interrogative form

Simple form	V-ing form
must I retool? must you retool? must she retool? must we retool? must you retool? must they retool?	must I be retooling? must you be retooling? must she be retooling? must we be retooling? must you be retooling? must they be retooling?
Perfect	V-ing perfect
must I have retooled? must you have retooled? must she have retooled? must we have retooled? must you have retooled? must they have retooled?	must I have been retooling? must you have been retooling? must she have been retooling? must we have been retooling? must you have been retooling? must they have been retooling?

Interro-negative form

Simple form	V-ing form
mustn't I retool? mustn't you retool? mustn't she retool? mustn't we retool? mustn't you retool? mustn't they retool?	mustn't I be retooling? mustn't you be retooling? mustn't she be retooling? mustn't we be retooling? mustn't you be retooling? mustn't they be retooling?
Perfect	V-ing perfect
mustn't I have retooled? mustn't you have retooled? mustn't she have retooled? mustn't we have retooled? mustn't you have retooled? mustn't they have retooled?	mustn't I have been retooling? mustn't you have been retooling? mustn't she have been retooling? mustn't we have been retooling? mustn't you have been retooling? mustn't they have been retooling?