English verb conjugation
COULD SMELT

Regular verb: smelt - smelted - smelted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?