English verb conjugation
COULD COSH

Regular verb: cosh - coshed - coshed

Affirmation

Simple form	V-ing form
I could cosh you could cosh he could cosh we could cosh you could cosh they could cosh	I could be coshing you could be coshing he could be coshing we could be coshing you could be coshing they could be coshing
Perfect	V-ing perfect
I could have coshed you could have coshed he could have coshed we could have coshed you could have coshed they could have coshed	I could have been coshing you could have been coshing he could have been coshing we could have been coshing you could have been coshing they could have been coshing

Negation

Simple form	V-ing form
I couldn't cosh you couldn't cosh he couldn't cosh we couldn't cosh you couldn't cosh they couldn't cosh	I couldn't be coshing you couldn't be coshing he couldn't be coshing we couldn't be coshing you couldn't be coshing they couldn't be coshing
Perfect	V-ing perfect
I couldn't have coshed you couldn't have coshed he couldn't have coshed we couldn't have coshed you couldn't have coshed they couldn't have coshed	I couldn't have been coshing you couldn't have been coshing he couldn't have been coshing we couldn't have been coshing you couldn't have been coshing they couldn't have been coshing

Interrogative form

Simple form	V-ing form
could I cosh? could you cosh? could he cosh? could we cosh? could you cosh? could they cosh?	could I be coshing? could you be coshing? could he be coshing? could we be coshing? could you be coshing? could they be coshing?
Perfect	V-ing perfect
could I have coshed? could you have coshed? could he have coshed? could we have coshed? could you have coshed? could they have coshed?	could I have been coshing? could you have been coshing? could he have been coshing? could we have been coshing? could you have been coshing? could they have been coshing?

Interro-negative form

Simple form	V-ing form
couldn't I cosh? couldn't you cosh? couldn't he cosh? couldn't we cosh? couldn't you cosh? couldn't they cosh?	couldn't I be coshing? couldn't you be coshing? couldn't he be coshing? couldn't we be coshing? couldn't you be coshing? couldn't they be coshing?
Perfect	V-ing perfect
couldn't I have coshed? couldn't you have coshed? couldn't he have coshed? couldn't we have coshed? couldn't you have coshed? couldn't they have coshed?	couldn't I have been coshing? couldn't you have been coshing? couldn't he have been coshing? couldn't we have been coshing? couldn't you have been coshing? couldn't they have been coshing?