English verb conjugation
MUST BACKCOMB

Regular verb: backcomb - backcombed - backcombed

Affirmation

Simple form	V-ing form
I must backcomb you must backcomb he must backcomb we must backcomb you must backcomb they must backcomb	I must be backcombing you must be backcombing he must be backcombing we must be backcombing you must be backcombing they must be backcombing
Perfect	V-ing perfect
I must have backcombed you must have backcombed he must have backcombed we must have backcombed you must have backcombed they must have backcombed	I must have been backcombing you must have been backcombing he must have been backcombing we must have been backcombing you must have been backcombing they must have been backcombing

Negation

Simple form	V-ing form
I mustn't backcomb you mustn't backcomb he mustn't backcomb we mustn't backcomb you mustn't backcomb they mustn't backcomb	I mustn't be backcombing you mustn't be backcombing he mustn't be backcombing we mustn't be backcombing you mustn't be backcombing they mustn't be backcombing
Perfect	V-ing perfect
I mustn't have backcombed you mustn't have backcombed he mustn't have backcombed we mustn't have backcombed you mustn't have backcombed they mustn't have backcombed	I mustn't have been backcombing you mustn't have been backcombing he mustn't have been backcombing we mustn't have been backcombing you mustn't have been backcombing they mustn't have been backcombing

Interrogative form

Simple form	V-ing form
must I backcomb? must you backcomb? must he backcomb? must we backcomb? must you backcomb? must they backcomb?	must I be backcombing? must you be backcombing? must he be backcombing? must we be backcombing? must you be backcombing? must they be backcombing?
Perfect	V-ing perfect
must I have backcombed? must you have backcombed? must he have backcombed? must we have backcombed? must you have backcombed? must they have backcombed?	must I have been backcombing? must you have been backcombing? must he have been backcombing? must we have been backcombing? must you have been backcombing? must they have been backcombing?

Interro-negative form

Simple form	V-ing form
mustn't I backcomb? mustn't you backcomb? mustn't he backcomb? mustn't we backcomb? mustn't you backcomb? mustn't they backcomb?	mustn't I be backcombing? mustn't you be backcombing? mustn't he be backcombing? mustn't we be backcombing? mustn't you be backcombing? mustn't they be backcombing?
Perfect	V-ing perfect
mustn't I have backcombed? mustn't you have backcombed? mustn't he have backcombed? mustn't we have backcombed? mustn't you have backcombed? mustn't they have backcombed?	mustn't I have been backcombing? mustn't you have been backcombing? mustn't he have been backcombing? mustn't we have been backcombing? mustn't you have been backcombing? mustn't they have been backcombing?