English verb conjugation
CAN SINGLE

Regular verb: single - singled - singled

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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