English verb conjugation
MUST SOLDER

Regular verb: solder - soldered - soldered

Affirmation

Simple form	V-ing form
I must solder you must solder she must solder we must solder you must solder they must solder	I must be soldering you must be soldering she must be soldering we must be soldering you must be soldering they must be soldering
Perfect	V-ing perfect
I must have soldered you must have soldered she must have soldered we must have soldered you must have soldered they must have soldered	I must have been soldering you must have been soldering she must have been soldering we must have been soldering you must have been soldering they must have been soldering

Negation

Simple form	V-ing form
I must not solder you must not solder she must not solder we must not solder you must not solder they must not solder	I must not be soldering you must not be soldering she must not be soldering we must not be soldering you must not be soldering they must not be soldering
Perfect	V-ing perfect
I must not have soldered you must not have soldered she must not have soldered we must not have soldered you must not have soldered they must not have soldered	I must not have been soldering you must not have been soldering she must not have been soldering we must not have been soldering you must not have been soldering they must not have been soldering

Interrogative form

Simple form	V-ing form
must I solder? must you solder? must she solder? must we solder? must you solder? must they solder?	must I be soldering? must you be soldering? must she be soldering? must we be soldering? must you be soldering? must they be soldering?
Perfect	V-ing perfect
must I have soldered? must you have soldered? must she have soldered? must we have soldered? must you have soldered? must they have soldered?	must I have been soldering? must you have been soldering? must she have been soldering? must we have been soldering? must you have been soldering? must they have been soldering?

Interro-negative form

Simple form	V-ing form
must I not solder? must you not solder? must she not solder? must we not solder? must you not solder? must they not solder?	must I not be soldering? must you not be soldering? must she not be soldering? must we not be soldering? must you not be soldering? must they not be soldering?
Perfect	V-ing perfect
must I not have soldered? must you not have soldered? must she not have soldered? must we not have soldered? must you not have soldered? must they not have soldered?	must I not have been soldering? must you not have been soldering? must she not have been soldering? must we not have been soldering? must you not have been soldering? must they not have been soldering?