English verb conjugation
COULD COSH

Regular verb: cosh - coshed - coshed

Affirmation

Simple form	V-ing form
I could cosh you could cosh she could cosh we could cosh you could cosh they could cosh	I could be coshing you could be coshing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she cosh? could we cosh? could you cosh? could they cosh?	could I be coshing? could you be coshing? could she 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 she 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 she 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 she 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 she 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 she 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 she have been coshing? couldn't we have been coshing? couldn't you have been coshing? couldn't they have been coshing?