English verb conjugation
MUST SINGLE

Regular verb: single - singled - singled

Affirmation

Simple form	V-ing form
I must single you must single he must single we must single you must single they must single	I must be singling you must be singling he must be singling we must be singling you must be singling they must be singling
Perfect	V-ing perfect
I must have singled you must have singled he must have singled we must have singled you must have singled they must have singled	I must have been singling you must have been singling he must have been singling we must have been singling you must have been singling they must have been singling

Negation

Simple form	V-ing form
I mustn't single you mustn't single he mustn't single we mustn't single you mustn't single they mustn't single	I mustn't be singling you mustn't be singling he mustn't be singling we mustn't be singling you mustn't be singling they mustn't be singling
Perfect	V-ing perfect
I mustn't have singled you mustn't have singled he mustn't have singled we mustn't have singled you mustn't have singled they mustn't have singled	I mustn't have been singling you mustn't have been singling he mustn't have been singling we mustn't have been singling you mustn't have been singling they mustn't have been singling

Interrogative form

Simple form	V-ing form
must I single? must you single? must he single? must we single? must you single? must they single?	must I be singling? must you be singling? must he be singling? must we be singling? must you be singling? must they be singling?
Perfect	V-ing perfect
must I have singled? must you have singled? must he have singled? must we have singled? must you have singled? must they have singled?	must I have been singling? must you have been singling? must he have been singling? must we have been singling? must you have been singling? must they have been singling?

Interro-negative form

Simple form	V-ing form
mustn't I single? mustn't you single? mustn't he single? mustn't we single? mustn't you single? mustn't they single?	mustn't I be singling? mustn't you be singling? mustn't he be singling? mustn't we be singling? mustn't you be singling? mustn't they be singling?
Perfect	V-ing perfect
mustn't I have singled? mustn't you have singled? mustn't he have singled? mustn't we have singled? mustn't you have singled? mustn't they have singled?	mustn't I have been singling? mustn't you have been singling? mustn't he have been singling? mustn't we have been singling? mustn't you have been singling? mustn't they have been singling?