English verb conjugation
MUST SMELT

Regular verb: smelt - smelted - smelted

Affirmation

Simple form	V-ing form
I must smelt you must smelt he must smelt we must smelt you must smelt they must smelt	I must be smelting you must be smelting he must be smelting we must be smelting you must be smelting they must be smelting
Perfect	V-ing perfect
I must have smelted you must have smelted he must have smelted we must have smelted you must have smelted they must have smelted	I must have been smelting you must have been smelting he must have been smelting we must have been smelting you must have been smelting they must have been smelting

Negation

Simple form	V-ing form
I must not smelt you must not smelt he must not smelt we must not smelt you must not smelt they must not smelt	I must not be smelting you must not be smelting he must not be smelting we must not be smelting you must not be smelting they must not be smelting
Perfect	V-ing perfect
I must not have smelted you must not have smelted he must not have smelted we must not have smelted you must not have smelted they must not have smelted	I must not have been smelting you must not have been smelting he must not have been smelting we must not have been smelting you must not have been smelting they must not have been smelting

Interrogative form

Simple form	V-ing form
must I smelt? must you smelt? must he smelt? must we smelt? must you smelt? must they smelt?	must I be smelting? must you be smelting? must he be smelting? must we be smelting? must you be smelting? must they be smelting?
Perfect	V-ing perfect
must I have smelted? must you have smelted? must he have smelted? must we have smelted? must you have smelted? must they have smelted?	must I have been smelting? must you have been smelting? must he have been smelting? must we have been smelting? must you have been smelting? must they have been smelting?

Interro-negative form

Simple form	V-ing form
must I not smelt? must you not smelt? must he not smelt? must we not smelt? must you not smelt? must they not smelt?	must I not be smelting? must you not be smelting? must he not be smelting? must we not be smelting? must you not be smelting? must they not be smelting?
Perfect	V-ing perfect
must I not have smelted? must you not have smelted? must he not have smelted? must we not have smelted? must you not have smelted? must they not have smelted?	must I not have been smelting? must you not have been smelting? must he not have been smelting? must we not have been smelting? must you not have been smelting? must they not have been smelting?