English verb conjugation
MUST PIKE

Regular verb: pike - piked - piked

Affirmation

Simple form	V-ing form
I must pike you must pike she must pike we must pike you must pike they must pike	I must be piking you must be piking she must be piking we must be piking you must be piking they must be piking
Perfect	V-ing perfect
I must have piked you must have piked she must have piked we must have piked you must have piked they must have piked	I must have been piking you must have been piking she must have been piking we must have been piking you must have been piking they must have been piking

Negation

Simple form	V-ing form
I mustn't pike you mustn't pike she mustn't pike we mustn't pike you mustn't pike they mustn't pike	I mustn't be piking you mustn't be piking she mustn't be piking we mustn't be piking you mustn't be piking they mustn't be piking
Perfect	V-ing perfect
I mustn't have piked you mustn't have piked she mustn't have piked we mustn't have piked you mustn't have piked they mustn't have piked	I mustn't have been piking you mustn't have been piking she mustn't have been piking we mustn't have been piking you mustn't have been piking they mustn't have been piking

Interrogative form

Simple form	V-ing form
must I pike? must you pike? must she pike? must we pike? must you pike? must they pike?	must I be piking? must you be piking? must she be piking? must we be piking? must you be piking? must they be piking?
Perfect	V-ing perfect
must I have piked? must you have piked? must she have piked? must we have piked? must you have piked? must they have piked?	must I have been piking? must you have been piking? must she have been piking? must we have been piking? must you have been piking? must they have been piking?

Interro-negative form

Simple form	V-ing form
mustn't I pike? mustn't you pike? mustn't she pike? mustn't we pike? mustn't you pike? mustn't they pike?	mustn't I be piking? mustn't you be piking? mustn't she be piking? mustn't we be piking? mustn't you be piking? mustn't they be piking?
Perfect	V-ing perfect
mustn't I have piked? mustn't you have piked? mustn't she have piked? mustn't we have piked? mustn't you have piked? mustn't they have piked?	mustn't I have been piking? mustn't you have been piking? mustn't she have been piking? mustn't we have been piking? mustn't you have been piking? mustn't they have been piking?