English verb conjugation
MUST SOLDER

Regular verb: solder - soldered - soldered

Affirmation

Simple form	V-ing form
I must solder you must solder he must solder we must solder you must solder they must solder	I must be soldering you must be soldering he 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 he 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 he 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 mustn't solder you mustn't solder he mustn't solder we mustn't solder you mustn't solder they mustn't solder	I mustn't be soldering you mustn't be soldering he mustn't be soldering we mustn't be soldering you mustn't be soldering they mustn't be soldering
Perfect	V-ing perfect
I mustn't have soldered you mustn't have soldered he mustn't have soldered we mustn't have soldered you mustn't have soldered they mustn't have soldered	I mustn't have been soldering you mustn't have been soldering he mustn't have been soldering we mustn't have been soldering you mustn't have been soldering they mustn't have been soldering

Interrogative form

Simple form	V-ing form
must I solder? must you solder? must he solder? must we solder? must you solder? must they solder?	must I be soldering? must you be soldering? must he 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 he 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 he 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
mustn't I solder? mustn't you solder? mustn't he solder? mustn't we solder? mustn't you solder? mustn't they solder?	mustn't I be soldering? mustn't you be soldering? mustn't he be soldering? mustn't we be soldering? mustn't you be soldering? mustn't they be soldering?
Perfect	V-ing perfect
mustn't I have soldered? mustn't you have soldered? mustn't he have soldered? mustn't we have soldered? mustn't you have soldered? mustn't they have soldered?	mustn't I have been soldering? mustn't you have been soldering? mustn't he have been soldering? mustn't we have been soldering? mustn't you have been soldering? mustn't they have been soldering?