English verb conjugation
MUST COSH

Regular verb: cosh - coshed - coshed

Affirmation

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

Negation

Simple form	V-ing form
I must not cosh you must not cosh he must not cosh we must not cosh you must not cosh they must not cosh	I must not be coshing you must not be coshing he must not be coshing we must not be coshing you must not be coshing they must not be coshing
Perfect	V-ing perfect
I must not have coshed you must not have coshed he must not have coshed we must not have coshed you must not have coshed they must not have coshed	I must not have been coshing you must not have been coshing he must not have been coshing we must not have been coshing you must not have been coshing they must not have been coshing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not cosh? must you not cosh? must he not cosh? must we not cosh? must you not cosh? must they not cosh?	must I not be coshing? must you not be coshing? must he not be coshing? must we not be coshing? must you not be coshing? must they not be coshing?
Perfect	V-ing perfect
must I not have coshed? must you not have coshed? must he not have coshed? must we not have coshed? must you not have coshed? must they not have coshed?	must I not have been coshing? must you not have been coshing? must he not have been coshing? must we not have been coshing? must you not have been coshing? must they not have been coshing?