English verb conjugation
MUST SHARK

Regular verb: shark - sharked - sharked

Affirmation

Simple form	V-ing form
I must shark you must shark she must shark we must shark you must shark they must shark	I must be sharking you must be sharking she must be sharking we must be sharking you must be sharking they must be sharking
Perfect	V-ing perfect
I must have sharked you must have sharked she must have sharked we must have sharked you must have sharked they must have sharked	I must have been sharking you must have been sharking she must have been sharking we must have been sharking you must have been sharking they must have been sharking

Negation

Simple form	V-ing form
I mustn't shark you mustn't shark she mustn't shark we mustn't shark you mustn't shark they mustn't shark	I mustn't be sharking you mustn't be sharking she mustn't be sharking we mustn't be sharking you mustn't be sharking they mustn't be sharking
Perfect	V-ing perfect
I mustn't have sharked you mustn't have sharked she mustn't have sharked we mustn't have sharked you mustn't have sharked they mustn't have sharked	I mustn't have been sharking you mustn't have been sharking she mustn't have been sharking we mustn't have been sharking you mustn't have been sharking they mustn't have been sharking

Interrogative form

Simple form	V-ing form
must I shark? must you shark? must she shark? must we shark? must you shark? must they shark?	must I be sharking? must you be sharking? must she be sharking? must we be sharking? must you be sharking? must they be sharking?
Perfect	V-ing perfect
must I have sharked? must you have sharked? must she have sharked? must we have sharked? must you have sharked? must they have sharked?	must I have been sharking? must you have been sharking? must she have been sharking? must we have been sharking? must you have been sharking? must they have been sharking?

Interro-negative form

Simple form	V-ing form
mustn't I shark? mustn't you shark? mustn't she shark? mustn't we shark? mustn't you shark? mustn't they shark?	mustn't I be sharking? mustn't you be sharking? mustn't she be sharking? mustn't we be sharking? mustn't you be sharking? mustn't they be sharking?
Perfect	V-ing perfect
mustn't I have sharked? mustn't you have sharked? mustn't she have sharked? mustn't we have sharked? mustn't you have sharked? mustn't they have sharked?	mustn't I have been sharking? mustn't you have been sharking? mustn't she have been sharking? mustn't we have been sharking? mustn't you have been sharking? mustn't they have been sharking?