English verb conjugation
MUST SPIKE

Regular verb: spike - spiked - spiked

Affirmation

Simple form	V-ing form
I must spike you must spike she must spike we must spike you must spike they must spike	I must be spiking you must be spiking she must be spiking we must be spiking you must be spiking they must be spiking
Perfect	V-ing perfect
I must have spiked you must have spiked she must have spiked we must have spiked you must have spiked they must have spiked	I must have been spiking you must have been spiking she must have been spiking we must have been spiking you must have been spiking they must have been spiking

Negation

Simple form	V-ing form
I must not spike you must not spike she must not spike we must not spike you must not spike they must not spike	I must not be spiking you must not be spiking she must not be spiking we must not be spiking you must not be spiking they must not be spiking
Perfect	V-ing perfect
I must not have spiked you must not have spiked she must not have spiked we must not have spiked you must not have spiked they must not have spiked	I must not have been spiking you must not have been spiking she must not have been spiking we must not have been spiking you must not have been spiking they must not have been spiking

Interrogative form

Simple form	V-ing form
must I spike? must you spike? must she spike? must we spike? must you spike? must they spike?	must I be spiking? must you be spiking? must she be spiking? must we be spiking? must you be spiking? must they be spiking?
Perfect	V-ing perfect
must I have spiked? must you have spiked? must she have spiked? must we have spiked? must you have spiked? must they have spiked?	must I have been spiking? must you have been spiking? must she have been spiking? must we have been spiking? must you have been spiking? must they have been spiking?

Interro-negative form

Simple form	V-ing form
must I not spike? must you not spike? must she not spike? must we not spike? must you not spike? must they not spike?	must I not be spiking? must you not be spiking? must she not be spiking? must we not be spiking? must you not be spiking? must they not be spiking?
Perfect	V-ing perfect
must I not have spiked? must you not have spiked? must she not have spiked? must we not have spiked? must you not have spiked? must they not have spiked?	must I not have been spiking? must you not have been spiking? must she not have been spiking? must we not have been spiking? must you not have been spiking? must they not have been spiking?