English verb conjugation
MUST SPECK

Regular verb: speck - specked - specked

Affirmation

Simple form	V-ing form
I must speck you must speck she must speck we must speck you must speck they must speck	I must be specking you must be specking she must be specking we must be specking you must be specking they must be specking
Perfect	V-ing perfect
I must have specked you must have specked she must have specked we must have specked you must have specked they must have specked	I must have been specking you must have been specking she must have been specking we must have been specking you must have been specking they must have been specking

Negation

Simple form	V-ing form
I must not speck you must not speck she must not speck we must not speck you must not speck they must not speck	I must not be specking you must not be specking she must not be specking we must not be specking you must not be specking they must not be specking
Perfect	V-ing perfect
I must not have specked you must not have specked she must not have specked we must not have specked you must not have specked they must not have specked	I must not have been specking you must not have been specking she must not have been specking we must not have been specking you must not have been specking they must not have been specking

Interrogative form

Simple form	V-ing form
must I speck? must you speck? must she speck? must we speck? must you speck? must they speck?	must I be specking? must you be specking? must she be specking? must we be specking? must you be specking? must they be specking?
Perfect	V-ing perfect
must I have specked? must you have specked? must she have specked? must we have specked? must you have specked? must they have specked?	must I have been specking? must you have been specking? must she have been specking? must we have been specking? must you have been specking? must they have been specking?

Interro-negative form

Simple form	V-ing form
must I not speck? must you not speck? must she not speck? must we not speck? must you not speck? must they not speck?	must I not be specking? must you not be specking? must she not be specking? must we not be specking? must you not be specking? must they not be specking?
Perfect	V-ing perfect
must I not have specked? must you not have specked? must she not have specked? must we not have specked? must you not have specked? must they not have specked?	must I not have been specking? must you not have been specking? must she not have been specking? must we not have been specking? must you not have been specking? must they not have been specking?