English verb conjugation
MUST SINTER

Regular verb: sinter - sintered - sintered

Affirmation

Simple form	V-ing form
I must sinter you must sinter he must sinter we must sinter you must sinter they must sinter	I must be sintering you must be sintering he must be sintering we must be sintering you must be sintering they must be sintering
Perfect	V-ing perfect
I must have sintered you must have sintered he must have sintered we must have sintered you must have sintered they must have sintered	I must have been sintering you must have been sintering he must have been sintering we must have been sintering you must have been sintering they must have been sintering

Negation

Simple form	V-ing form
I must not sinter you must not sinter he must not sinter we must not sinter you must not sinter they must not sinter	I must not be sintering you must not be sintering he must not be sintering we must not be sintering you must not be sintering they must not be sintering
Perfect	V-ing perfect
I must not have sintered you must not have sintered he must not have sintered we must not have sintered you must not have sintered they must not have sintered	I must not have been sintering you must not have been sintering he must not have been sintering we must not have been sintering you must not have been sintering they must not have been sintering

Interrogative form

Simple form	V-ing form
must I sinter? must you sinter? must he sinter? must we sinter? must you sinter? must they sinter?	must I be sintering? must you be sintering? must he be sintering? must we be sintering? must you be sintering? must they be sintering?
Perfect	V-ing perfect
must I have sintered? must you have sintered? must he have sintered? must we have sintered? must you have sintered? must they have sintered?	must I have been sintering? must you have been sintering? must he have been sintering? must we have been sintering? must you have been sintering? must they have been sintering?

Interro-negative form

Simple form	V-ing form
must I not sinter? must you not sinter? must he not sinter? must we not sinter? must you not sinter? must they not sinter?	must I not be sintering? must you not be sintering? must he not be sintering? must we not be sintering? must you not be sintering? must they not be sintering?
Perfect	V-ing perfect
must I not have sintered? must you not have sintered? must he not have sintered? must we not have sintered? must you not have sintered? must they not have sintered?	must I not have been sintering? must you not have been sintering? must he not have been sintering? must we not have been sintering? must you not have been sintering? must they not have been sintering?