English verb conjugation
MUST GROOVE

Regular verb: groove - grooved - grooved

Affirmation

Simple form	V-ing form
I must groove you must groove he must groove we must groove you must groove they must groove	I must be grooving you must be grooving he must be grooving we must be grooving you must be grooving they must be grooving
Perfect	V-ing perfect
I must have grooved you must have grooved he must have grooved we must have grooved you must have grooved they must have grooved	I must have been grooving you must have been grooving he must have been grooving we must have been grooving you must have been grooving they must have been grooving

Negation

Simple form	V-ing form
I must not groove you must not groove he must not groove we must not groove you must not groove they must not groove	I must not be grooving you must not be grooving he must not be grooving we must not be grooving you must not be grooving they must not be grooving
Perfect	V-ing perfect
I must not have grooved you must not have grooved he must not have grooved we must not have grooved you must not have grooved they must not have grooved	I must not have been grooving you must not have been grooving he must not have been grooving we must not have been grooving you must not have been grooving they must not have been grooving

Interrogative form

Simple form	V-ing form
must I groove? must you groove? must he groove? must we groove? must you groove? must they groove?	must I be grooving? must you be grooving? must he be grooving? must we be grooving? must you be grooving? must they be grooving?
Perfect	V-ing perfect
must I have grooved? must you have grooved? must he have grooved? must we have grooved? must you have grooved? must they have grooved?	must I have been grooving? must you have been grooving? must he have been grooving? must we have been grooving? must you have been grooving? must they have been grooving?

Interro-negative form

Simple form	V-ing form
must I not groove? must you not groove? must he not groove? must we not groove? must you not groove? must they not groove?	must I not be grooving? must you not be grooving? must he not be grooving? must we not be grooving? must you not be grooving? must they not be grooving?
Perfect	V-ing perfect
must I not have grooved? must you not have grooved? must he not have grooved? must we not have grooved? must you not have grooved? must they not have grooved?	must I not have been grooving? must you not have been grooving? must he not have been grooving? must we not have been grooving? must you not have been grooving? must they not have been grooving?