English verb conjugation
MUST CLAMBER

Regular verb: clamber - clambered - clambered

Affirmation

Simple form	V-ing form
I must clamber you must clamber he must clamber we must clamber you must clamber they must clamber	I must be clambering you must be clambering he must be clambering we must be clambering you must be clambering they must be clambering
Perfect	V-ing perfect
I must have clambered you must have clambered he must have clambered we must have clambered you must have clambered they must have clambered	I must have been clambering you must have been clambering he must have been clambering we must have been clambering you must have been clambering they must have been clambering

Negation

Simple form	V-ing form
I must not clamber you must not clamber he must not clamber we must not clamber you must not clamber they must not clamber	I must not be clambering you must not be clambering he must not be clambering we must not be clambering you must not be clambering they must not be clambering
Perfect	V-ing perfect
I must not have clambered you must not have clambered he must not have clambered we must not have clambered you must not have clambered they must not have clambered	I must not have been clambering you must not have been clambering he must not have been clambering we must not have been clambering you must not have been clambering they must not have been clambering

Interrogative form

Simple form	V-ing form
must I clamber? must you clamber? must he clamber? must we clamber? must you clamber? must they clamber?	must I be clambering? must you be clambering? must he be clambering? must we be clambering? must you be clambering? must they be clambering?
Perfect	V-ing perfect
must I have clambered? must you have clambered? must he have clambered? must we have clambered? must you have clambered? must they have clambered?	must I have been clambering? must you have been clambering? must he have been clambering? must we have been clambering? must you have been clambering? must they have been clambering?

Interro-negative form

Simple form	V-ing form
must I not clamber? must you not clamber? must he not clamber? must we not clamber? must you not clamber? must they not clamber?	must I not be clambering? must you not be clambering? must he not be clambering? must we not be clambering? must you not be clambering? must they not be clambering?
Perfect	V-ing perfect
must I not have clambered? must you not have clambered? must he not have clambered? must we not have clambered? must you not have clambered? must they not have clambered?	must I not have been clambering? must you not have been clambering? must he not have been clambering? must we not have been clambering? must you not have been clambering? must they not have been clambering?