should coal
Regular verb: coal - coaled- coaled

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not coal
you should not coal
he should not coal
we should not coal
you should not coal
they should not coal 	I should not be coaling
you should not be coaling
he should not be coaling
we should not be coaling
you should not be coaling
they should not be coaling	I should not have coaled
you should not have coaled
he should not have coaled
we should not have coaled
you should not have coaled
they should not have coaled	I should not have been coaling
you should not have been coaling
he should not have been coaling
we should not have been coaling
you should not have been coaling
they should not have been coaling	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not coal?
should you not coal?
should he not coal?
should we not coal?
should you not coal?
should they not coal? 	should I not be coaling?
should you not be coaling?
should he not be coaling?
should we not be coaling?
should you not be coaling?
should they not be coaling? 	should I not have coaled?
should you not have coaled?
should he not have coaled?
should we not have coaled?
should you not have coaled?
should they not have coaled? 	should I not have been coaling?
should you not have been coaling?
should he not have been coaling?
should we not have been coaling?
should you not have been coaling?
should they not have been coaling?