can sin
Regular verb: sin - sinned- sinned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sin
you can sin
she can sin
we can sin
you can sin
they can sin 	I can be sinning
you can be sinning
she can be sinning
we can be sinning
you can be sinning
they can be sinning	I can have sinned
you can have sinned
she 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
she 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 	Perfect 	V-ing perfect 	
I can't sin
you can't sin
she can't sin
we can't sin
you can't sin
they can't sin 	I can't be sinning
you can't be sinning
she can't be sinning
we can't be sinning
you can't be sinning
they can't be sinning	I can't have sinned
you can't have sinned
she can't have sinned
we can't have sinned
you can't have sinned
they can't have sinned	I can't have been sinning
you can't have been sinning
she can't have been sinning
we can't have been sinning
you can't have been sinning
they can't have been sinning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sin?
can you sin?
can she sin?
can we sin?
can you sin?
can they sin? 	can I be sinning?
can you be sinning?
can she be sinning?
can we be sinning?
can you be sinning?
can they be sinning? 	can I have sinned?
can you have sinned?
can she 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 she 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 	Perfect 	V-ing perfect 	
can't I sin?
can't you sin?
can't she sin?
can't we sin?
can't you sin?
can't they sin? 	can't I be sinning?
can't you be sinning?
can't she be sinning?
can't we be sinning?
can't you be sinning?
can't they be sinning? 	can't I have sinned?
can't you have sinned?
can't she have sinned?
can't we have sinned?
can't you have sinned?
can't they have sinned? 	can't I have been sinning?
can't you have been sinning?
can't she have been sinning?
can't we have been sinning?
can't you have been sinning?
can't they have been sinning?