English verb conjugation
MUST BULL

Regular verb: bull - bulled - bulled

Affirmation

Simple form	V-ing form
I must bull you must bull she must bull we must bull you must bull they must bull	I must be bulling you must be bulling she must be bulling we must be bulling you must be bulling they must be bulling
Perfect	V-ing perfect
I must have bulled you must have bulled she must have bulled we must have bulled you must have bulled they must have bulled	I must have been bulling you must have been bulling she must have been bulling we must have been bulling you must have been bulling they must have been bulling

Negation

Simple form	V-ing form
I mustn't bull you mustn't bull she mustn't bull we mustn't bull you mustn't bull they mustn't bull	I mustn't be bulling you mustn't be bulling she mustn't be bulling we mustn't be bulling you mustn't be bulling they mustn't be bulling
Perfect	V-ing perfect
I mustn't have bulled you mustn't have bulled she mustn't have bulled we mustn't have bulled you mustn't have bulled they mustn't have bulled	I mustn't have been bulling you mustn't have been bulling she mustn't have been bulling we mustn't have been bulling you mustn't have been bulling they mustn't have been bulling

Interrogative form

Simple form	V-ing form
must I bull? must you bull? must she bull? must we bull? must you bull? must they bull?	must I be bulling? must you be bulling? must she be bulling? must we be bulling? must you be bulling? must they be bulling?
Perfect	V-ing perfect
must I have bulled? must you have bulled? must she have bulled? must we have bulled? must you have bulled? must they have bulled?	must I have been bulling? must you have been bulling? must she have been bulling? must we have been bulling? must you have been bulling? must they have been bulling?

Interro-negative form

Simple form	V-ing form
mustn't I bull? mustn't you bull? mustn't she bull? mustn't we bull? mustn't you bull? mustn't they bull?	mustn't I be bulling? mustn't you be bulling? mustn't she be bulling? mustn't we be bulling? mustn't you be bulling? mustn't they be bulling?
Perfect	V-ing perfect
mustn't I have bulled? mustn't you have bulled? mustn't she have bulled? mustn't we have bulled? mustn't you have bulled? mustn't they have bulled?	mustn't I have been bulling? mustn't you have been bulling? mustn't she have been bulling? mustn't we have been bulling? mustn't you have been bulling? mustn't they have been bulling?