English verb conjugation
MUST CAB

Regular verb: cab - cabed - cabed

Affirmation

Simple form	V-ing form
I must cab you must cab she must cab we must cab you must cab they must cab	I must be cabing you must be cabing she must be cabing we must be cabing you must be cabing they must be cabing
Perfect	V-ing perfect
I must have cabed you must have cabed she must have cabed we must have cabed you must have cabed they must have cabed	I must have been cabing you must have been cabing she must have been cabing we must have been cabing you must have been cabing they must have been cabing

Negation

Simple form	V-ing form
I mustn't cab you mustn't cab she mustn't cab we mustn't cab you mustn't cab they mustn't cab	I mustn't be cabing you mustn't be cabing she mustn't be cabing we mustn't be cabing you mustn't be cabing they mustn't be cabing
Perfect	V-ing perfect
I mustn't have cabed you mustn't have cabed she mustn't have cabed we mustn't have cabed you mustn't have cabed they mustn't have cabed	I mustn't have been cabing you mustn't have been cabing she mustn't have been cabing we mustn't have been cabing you mustn't have been cabing they mustn't have been cabing

Interrogative form

Simple form	V-ing form
must I cab? must you cab? must she cab? must we cab? must you cab? must they cab?	must I be cabing? must you be cabing? must she be cabing? must we be cabing? must you be cabing? must they be cabing?
Perfect	V-ing perfect
must I have cabed? must you have cabed? must she have cabed? must we have cabed? must you have cabed? must they have cabed?	must I have been cabing? must you have been cabing? must she have been cabing? must we have been cabing? must you have been cabing? must they have been cabing?

Interro-negative form

Simple form	V-ing form
mustn't I cab? mustn't you cab? mustn't she cab? mustn't we cab? mustn't you cab? mustn't they cab?	mustn't I be cabing? mustn't you be cabing? mustn't she be cabing? mustn't we be cabing? mustn't you be cabing? mustn't they be cabing?
Perfect	V-ing perfect
mustn't I have cabed? mustn't you have cabed? mustn't she have cabed? mustn't we have cabed? mustn't you have cabed? mustn't they have cabed?	mustn't I have been cabing? mustn't you have been cabing? mustn't she have been cabing? mustn't we have been cabing? mustn't you have been cabing? mustn't they have been cabing?