English verb conjugation
MUST STROKE

Regular verb: stroke - stroked - stroked

Affirmation

Simple form	V-ing form
I must stroke you must stroke she must stroke we must stroke you must stroke they must stroke	I must be stroking you must be stroking she must be stroking we must be stroking you must be stroking they must be stroking
Perfect	V-ing perfect
I must have stroked you must have stroked she must have stroked we must have stroked you must have stroked they must have stroked	I must have been stroking you must have been stroking she must have been stroking we must have been stroking you must have been stroking they must have been stroking

Negation

Simple form	V-ing form
I mustn't stroke you mustn't stroke she mustn't stroke we mustn't stroke you mustn't stroke they mustn't stroke	I mustn't be stroking you mustn't be stroking she mustn't be stroking we mustn't be stroking you mustn't be stroking they mustn't be stroking
Perfect	V-ing perfect
I mustn't have stroked you mustn't have stroked she mustn't have stroked we mustn't have stroked you mustn't have stroked they mustn't have stroked	I mustn't have been stroking you mustn't have been stroking she mustn't have been stroking we mustn't have been stroking you mustn't have been stroking they mustn't have been stroking

Interrogative form

Simple form	V-ing form
must I stroke? must you stroke? must she stroke? must we stroke? must you stroke? must they stroke?	must I be stroking? must you be stroking? must she be stroking? must we be stroking? must you be stroking? must they be stroking?
Perfect	V-ing perfect
must I have stroked? must you have stroked? must she have stroked? must we have stroked? must you have stroked? must they have stroked?	must I have been stroking? must you have been stroking? must she have been stroking? must we have been stroking? must you have been stroking? must they have been stroking?

Interro-negative form

Simple form	V-ing form
mustn't I stroke? mustn't you stroke? mustn't she stroke? mustn't we stroke? mustn't you stroke? mustn't they stroke?	mustn't I be stroking? mustn't you be stroking? mustn't she be stroking? mustn't we be stroking? mustn't you be stroking? mustn't they be stroking?
Perfect	V-ing perfect
mustn't I have stroked? mustn't you have stroked? mustn't she have stroked? mustn't we have stroked? mustn't you have stroked? mustn't they have stroked?	mustn't I have been stroking? mustn't you have been stroking? mustn't she have been stroking? mustn't we have been stroking? mustn't you have been stroking? mustn't they have been stroking?