English verb conjugation
MUST MELT

Regular verb: melt - melted - melted

Affirmation

Simple form	V-ing form
I must melt you must melt he must melt we must melt you must melt they must melt	I must be melting you must be melting he must be melting we must be melting you must be melting they must be melting
Perfect	V-ing perfect
I must have melted you must have melted he must have melted we must have melted you must have melted they must have melted	I must have been melting you must have been melting he must have been melting we must have been melting you must have been melting they must have been melting

Negation

Simple form	V-ing form
I must not melt you must not melt he must not melt we must not melt you must not melt they must not melt	I must not be melting you must not be melting he must not be melting we must not be melting you must not be melting they must not be melting
Perfect	V-ing perfect
I must not have melted you must not have melted he must not have melted we must not have melted you must not have melted they must not have melted	I must not have been melting you must not have been melting he must not have been melting we must not have been melting you must not have been melting they must not have been melting

Interrogative form

Simple form	V-ing form
must I melt? must you melt? must he melt? must we melt? must you melt? must they melt?	must I be melting? must you be melting? must he be melting? must we be melting? must you be melting? must they be melting?
Perfect	V-ing perfect
must I have melted? must you have melted? must he have melted? must we have melted? must you have melted? must they have melted?	must I have been melting? must you have been melting? must he have been melting? must we have been melting? must you have been melting? must they have been melting?

Interro-negative form

Simple form	V-ing form
must I not melt? must you not melt? must he not melt? must we not melt? must you not melt? must they not melt?	must I not be melting? must you not be melting? must he not be melting? must we not be melting? must you not be melting? must they not be melting?
Perfect	V-ing perfect
must I not have melted? must you not have melted? must he not have melted? must we not have melted? must you not have melted? must they not have melted?	must I not have been melting? must you not have been melting? must he not have been melting? must we not have been melting? must you not have been melting? must they not have been melting?