can coal
Regular verb: coal - coaled- coaled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can coal
you can coal
she can coal
we can coal
you can coal
they can coal 	I can be coaling
you can be coaling
she can be coaling
we can be coaling
you can be coaling
they can be coaling	I can have coaled
you can have coaled
she can have coaled
we can have coaled
you can have coaled
they can have coaled	I can have been coaling
you can have been coaling
she can have been coaling
we can have been coaling
you can have been coaling
they can have been coaling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't coal
you can't coal
she can't coal
we can't coal
you can't coal
they can't coal 	I can't be coaling
you can't be coaling
she can't be coaling
we can't be coaling
you can't be coaling
they can't be coaling	I can't have coaled
you can't have coaled
she can't have coaled
we can't have coaled
you can't have coaled
they can't have coaled	I can't have been coaling
you can't have been coaling
she can't have been coaling
we can't have been coaling
you can't have been coaling
they can't have been coaling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I coal?
can you coal?
can she coal?
can we coal?
can you coal?
can they coal? 	can I be coaling?
can you be coaling?
can she be coaling?
can we be coaling?
can you be coaling?
can they be coaling? 	can I have coaled?
can you have coaled?
can she have coaled?
can we have coaled?
can you have coaled?
can they have coaled? 	can I have been coaling?
can you have been coaling?
can she have been coaling?
can we have been coaling?
can you have been coaling?
can they have been coaling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I coal?
can't you coal?
can't she coal?
can't we coal?
can't you coal?
can't they coal? 	can't I be coaling?
can't you be coaling?
can't she be coaling?
can't we be coaling?
can't you be coaling?
can't they be coaling? 	can't I have coaled?
can't you have coaled?
can't she have coaled?
can't we have coaled?
can't you have coaled?
can't they have coaled? 	can't I have been coaling?
can't you have been coaling?
can't she have been coaling?
can't we have been coaling?
can't you have been coaling?
can't they have been coaling?