could stet
Regular verb: stet - stetted- stetted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could stet
you could stet
she could stet
we could stet
you could stet
they could stet 	I could be stetting
you could be stetting
she could be stetting
we could be stetting
you could be stetting
they could be stetting	I could have stetted
you could have stetted
she could have stetted
we could have stetted
you could have stetted
they could have stetted	I could have been stetting
you could have been stetting
she could have been stetting
we could have been stetting
you could have been stetting
they could have been stetting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't stet
you couldn't stet
she couldn't stet
we couldn't stet
you couldn't stet
they couldn't stet 	I couldn't be stetting
you couldn't be stetting
she couldn't be stetting
we couldn't be stetting
you couldn't be stetting
they couldn't be stetting	I couldn't have stetted
you couldn't have stetted
she couldn't have stetted
we couldn't have stetted
you couldn't have stetted
they couldn't have stetted	I couldn't have been stetting
you couldn't have been stetting
she couldn't have been stetting
we couldn't have been stetting
you couldn't have been stetting
they couldn't have been stetting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I stet?
could you stet?
could she stet?
could we stet?
could you stet?
could they stet? 	could I be stetting?
could you be stetting?
could she be stetting?
could we be stetting?
could you be stetting?
could they be stetting? 	could I have stetted?
could you have stetted?
could she have stetted?
could we have stetted?
could you have stetted?
could they have stetted? 	could I have been stetting?
could you have been stetting?
could she have been stetting?
could we have been stetting?
could you have been stetting?
could they have been stetting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I stet?
couldn't you stet?
couldn't she stet?
couldn't we stet?
couldn't you stet?
couldn't they stet? 	couldn't I be stetting?
couldn't you be stetting?
couldn't she be stetting?
couldn't we be stetting?
couldn't you be stetting?
couldn't they be stetting? 	couldn't I have stetted?
couldn't you have stetted?
couldn't she have stetted?
couldn't we have stetted?
couldn't you have stetted?
couldn't they have stetted? 	couldn't I have been stetting?
couldn't you have been stetting?
couldn't she have been stetting?
couldn't we have been stetting?
couldn't you have been stetting?
couldn't they have been stetting?