English verb conjugation
MUST PLONK

Regular verb: plonk - plonked - plonked

Affirmation

Simple form	V-ing form
I must plonk you must plonk he must plonk we must plonk you must plonk they must plonk	I must be plonking you must be plonking he must be plonking we must be plonking you must be plonking they must be plonking
Perfect	V-ing perfect
I must have plonked you must have plonked he must have plonked we must have plonked you must have plonked they must have plonked	I must have been plonking you must have been plonking he must have been plonking we must have been plonking you must have been plonking they must have been plonking

Negation

Simple form	V-ing form
I must not plonk you must not plonk he must not plonk we must not plonk you must not plonk they must not plonk	I must not be plonking you must not be plonking he must not be plonking we must not be plonking you must not be plonking they must not be plonking
Perfect	V-ing perfect
I must not have plonked you must not have plonked he must not have plonked we must not have plonked you must not have plonked they must not have plonked	I must not have been plonking you must not have been plonking he must not have been plonking we must not have been plonking you must not have been plonking they must not have been plonking

Interrogative form

Simple form	V-ing form
must I plonk? must you plonk? must he plonk? must we plonk? must you plonk? must they plonk?	must I be plonking? must you be plonking? must he be plonking? must we be plonking? must you be plonking? must they be plonking?
Perfect	V-ing perfect
must I have plonked? must you have plonked? must he have plonked? must we have plonked? must you have plonked? must they have plonked?	must I have been plonking? must you have been plonking? must he have been plonking? must we have been plonking? must you have been plonking? must they have been plonking?

Interro-negative form

Simple form	V-ing form
must I not plonk? must you not plonk? must he not plonk? must we not plonk? must you not plonk? must they not plonk?	must I not be plonking? must you not be plonking? must he not be plonking? must we not be plonking? must you not be plonking? must they not be plonking?
Perfect	V-ing perfect
must I not have plonked? must you not have plonked? must he not have plonked? must we not have plonked? must you not have plonked? must they not have plonked?	must I not have been plonking? must you not have been plonking? must he not have been plonking? must we not have been plonking? must you not have been plonking? must they not have been plonking?