could marl
Regular verb: marl - marled- marled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could marl
you could marl
he could marl
we could marl
you could marl
they could marl 	I could be marling
you could be marling
he could be marling
we could be marling
you could be marling
they could be marling	I could have marled
you could have marled
he could have marled
we could have marled
you could have marled
they could have marled	I could have been marling
you could have been marling
he could have been marling
we could have been marling
you could have been marling
they could have been marling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not marl
you could not marl
he could not marl
we could not marl
you could not marl
they could not marl 	I could not be marling
you could not be marling
he could not be marling
we could not be marling
you could not be marling
they could not be marling	I could not have marled
you could not have marled
he could not have marled
we could not have marled
you could not have marled
they could not have marled	I could not have been marling
you could not have been marling
he could not have been marling
we could not have been marling
you could not have been marling
they could not have been marling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I marl?
could you marl?
could he marl?
could we marl?
could you marl?
could they marl? 	could I be marling?
could you be marling?
could he be marling?
could we be marling?
could you be marling?
could they be marling? 	could I have marled?
could you have marled?
could he have marled?
could we have marled?
could you have marled?
could they have marled? 	could I have been marling?
could you have been marling?
could he have been marling?
could we have been marling?
could you have been marling?
could they have been marling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not marl?
could you not marl?
could he not marl?
could we not marl?
could you not marl?
could they not marl? 	could I not be marling?
could you not be marling?
could he not be marling?
could we not be marling?
could you not be marling?
could they not be marling? 	could I not have marled?
could you not have marled?
could he not have marled?
could we not have marled?
could you not have marled?
could they not have marled? 	could I not have been marling?
could you not have been marling?
could he not have been marling?
could we not have been marling?
could you not have been marling?
could they not have been marling?