could smelt
Regular verb: smelt - smelted- smelted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could smelt
you could smelt
he could smelt
we could smelt
you could smelt
they could smelt 	I could be smelting
you could be smelting
he could be smelting
we could be smelting
you could be smelting
they could be smelting	I could have smelted
you could have smelted
he could have smelted
we could have smelted
you could have smelted
they could have smelted	I could have been smelting
you could have been smelting
he could have been smelting
we could have been smelting
you could have been smelting
they could have been smelting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't smelt
you couldn't smelt
he couldn't smelt
we couldn't smelt
you couldn't smelt
they couldn't smelt 	I couldn't be smelting
you couldn't be smelting
he couldn't be smelting
we couldn't be smelting
you couldn't be smelting
they couldn't be smelting	I couldn't have smelted
you couldn't have smelted
he couldn't have smelted
we couldn't have smelted
you couldn't have smelted
they couldn't have smelted	I couldn't have been smelting
you couldn't have been smelting
he couldn't have been smelting
we couldn't have been smelting
you couldn't have been smelting
they couldn't have been smelting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I smelt?
could you smelt?
could he smelt?
could we smelt?
could you smelt?
could they smelt? 	could I be smelting?
could you be smelting?
could he be smelting?
could we be smelting?
could you be smelting?
could they be smelting? 	could I have smelted?
could you have smelted?
could he have smelted?
could we have smelted?
could you have smelted?
could they have smelted? 	could I have been smelting?
could you have been smelting?
could he have been smelting?
could we have been smelting?
could you have been smelting?
could they have been smelting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I smelt?
couldn't you smelt?
couldn't he smelt?
couldn't we smelt?
couldn't you smelt?
couldn't they smelt? 	couldn't I be smelting?
couldn't you be smelting?
couldn't he be smelting?
couldn't we be smelting?
couldn't you be smelting?
couldn't they be smelting? 	couldn't I have smelted?
couldn't you have smelted?
couldn't he have smelted?
couldn't we have smelted?
couldn't you have smelted?
couldn't they have smelted? 	couldn't I have been smelting?
couldn't you have been smelting?
couldn't he have been smelting?
couldn't we have been smelting?
couldn't you have been smelting?
couldn't they have been smelting?