English verb conjugation
CAN SIN

Regular verb: sin - sinned - sinned

Affirmation

Simple form	V-ing form
I can sin you can sin he can sin we can sin you can sin they can sin	I can be sinning you can be sinning he can be sinning we can be sinning you can be sinning they can be sinning
Perfect	V-ing perfect
I can have sinned you can have sinned he can have sinned we can have sinned you can have sinned they can have sinned	I can have been sinning you can have been sinning he can have been sinning we can have been sinning you can have been sinning they can have been sinning

Negation

Simple form	V-ing form
I cannot sin you cannot sin he cannot sin we cannot sin you cannot sin they cannot sin	I cannot be sinning you cannot be sinning he cannot be sinning we cannot be sinning you cannot be sinning they cannot be sinning
Perfect	V-ing perfect
I cannot have sinned you cannot have sinned he cannot have sinned we cannot have sinned you cannot have sinned they cannot have sinned	I cannot have been sinning you cannot have been sinning he cannot have been sinning we cannot have been sinning you cannot have been sinning they cannot have been sinning

Interrogative form

Simple form	V-ing form
can I sin? can you sin? can he sin? can we sin? can you sin? can they sin?	can I be sinning? can you be sinning? can he be sinning? can we be sinning? can you be sinning? can they be sinning?
Perfect	V-ing perfect
can I have sinned? can you have sinned? can he have sinned? can we have sinned? can you have sinned? can they have sinned?	can I have been sinning? can you have been sinning? can he have been sinning? can we have been sinning? can you have been sinning? can they have been sinning?

Interro-negative form

Simple form	V-ing form
can I not sin? can you not sin? can he not sin? can we not sin? can you not sin? can they not sin?	can I not be sinning? can you not be sinning? can he not be sinning? can we not be sinning? can you not be sinning? can they not be sinning?
Perfect	V-ing perfect
can I not have sinned? can you not have sinned? can he not have sinned? can we not have sinned? can you not have sinned? can they not have sinned?	can I not have been sinning? can you not have been sinning? can he not have been sinning? can we not have been sinning? can you not have been sinning? can they not have been sinning?