can skin
Regular verb: skin - skinned- skinned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can skin
you can skin
she can skin
we can skin
you can skin
they can skin 	I can be skinning
you can be skinning
she can be skinning
we can be skinning
you can be skinning
they can be skinning	I can have skinned
you can have skinned
she can have skinned
we can have skinned
you can have skinned
they can have skinned	I can have been skinning
you can have been skinning
she can have been skinning
we can have been skinning
you can have been skinning
they can have been skinning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't skin
you can't skin
she can't skin
we can't skin
you can't skin
they can't skin 	I can't be skinning
you can't be skinning
she can't be skinning
we can't be skinning
you can't be skinning
they can't be skinning	I can't have skinned
you can't have skinned
she can't have skinned
we can't have skinned
you can't have skinned
they can't have skinned	I can't have been skinning
you can't have been skinning
she can't have been skinning
we can't have been skinning
you can't have been skinning
they can't have been skinning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I skin?
can you skin?
can she skin?
can we skin?
can you skin?
can they skin? 	can I be skinning?
can you be skinning?
can she be skinning?
can we be skinning?
can you be skinning?
can they be skinning? 	can I have skinned?
can you have skinned?
can she have skinned?
can we have skinned?
can you have skinned?
can they have skinned? 	can I have been skinning?
can you have been skinning?
can she have been skinning?
can we have been skinning?
can you have been skinning?
can they have been skinning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I skin?
can't you skin?
can't she skin?
can't we skin?
can't you skin?
can't they skin? 	can't I be skinning?
can't you be skinning?
can't she be skinning?
can't we be skinning?
can't you be skinning?
can't they be skinning? 	can't I have skinned?
can't you have skinned?
can't she have skinned?
can't we have skinned?
can't you have skinned?
can't they have skinned? 	can't I have been skinning?
can't you have been skinning?
can't she have been skinning?
can't we have been skinning?
can't you have been skinning?
can't they have been skinning?