could sallow
Regular verb: sallow - sallowed- sallowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sallow
you could sallow
he could sallow
we could sallow
you could sallow
they could sallow 	I could be sallowing
you could be sallowing
he could be sallowing
we could be sallowing
you could be sallowing
they could be sallowing	I could have sallowed
you could have sallowed
he could have sallowed
we could have sallowed
you could have sallowed
they could have sallowed	I could have been sallowing
you could have been sallowing
he could have been sallowing
we could have been sallowing
you could have been sallowing
they could have been sallowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not sallow
you could not sallow
he could not sallow
we could not sallow
you could not sallow
they could not sallow 	I could not be sallowing
you could not be sallowing
he could not be sallowing
we could not be sallowing
you could not be sallowing
they could not be sallowing	I could not have sallowed
you could not have sallowed
he could not have sallowed
we could not have sallowed
you could not have sallowed
they could not have sallowed	I could not have been sallowing
you could not have been sallowing
he could not have been sallowing
we could not have been sallowing
you could not have been sallowing
they could not have been sallowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sallow?
could you sallow?
could he sallow?
could we sallow?
could you sallow?
could they sallow? 	could I be sallowing?
could you be sallowing?
could he be sallowing?
could we be sallowing?
could you be sallowing?
could they be sallowing? 	could I have sallowed?
could you have sallowed?
could he have sallowed?
could we have sallowed?
could you have sallowed?
could they have sallowed? 	could I have been sallowing?
could you have been sallowing?
could he have been sallowing?
could we have been sallowing?
could you have been sallowing?
could they have been sallowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not sallow?
could you not sallow?
could he not sallow?
could we not sallow?
could you not sallow?
could they not sallow? 	could I not be sallowing?
could you not be sallowing?
could he not be sallowing?
could we not be sallowing?
could you not be sallowing?
could they not be sallowing? 	could I not have sallowed?
could you not have sallowed?
could he not have sallowed?
could we not have sallowed?
could you not have sallowed?
could they not have sallowed? 	could I not have been sallowing?
could you not have been sallowing?
could he not have been sallowing?
could we not have been sallowing?
could you not have been sallowing?
could they not have been sallowing?