English verb conjugation
MUST FRIEND

Regular verb: friend - friended - friended

Affirmation

Simple form	V-ing form
I must friend you must friend she must friend we must friend you must friend they must friend	I must be friending you must be friending she must be friending we must be friending you must be friending they must be friending
Perfect	V-ing perfect
I must have friended you must have friended she must have friended we must have friended you must have friended they must have friended	I must have been friending you must have been friending she must have been friending we must have been friending you must have been friending they must have been friending

Negation

Simple form	V-ing form
I mustn't friend you mustn't friend she mustn't friend we mustn't friend you mustn't friend they mustn't friend	I mustn't be friending you mustn't be friending she mustn't be friending we mustn't be friending you mustn't be friending they mustn't be friending
Perfect	V-ing perfect
I mustn't have friended you mustn't have friended she mustn't have friended we mustn't have friended you mustn't have friended they mustn't have friended	I mustn't have been friending you mustn't have been friending she mustn't have been friending we mustn't have been friending you mustn't have been friending they mustn't have been friending

Interrogative form

Simple form	V-ing form
must I friend? must you friend? must she friend? must we friend? must you friend? must they friend?	must I be friending? must you be friending? must she be friending? must we be friending? must you be friending? must they be friending?
Perfect	V-ing perfect
must I have friended? must you have friended? must she have friended? must we have friended? must you have friended? must they have friended?	must I have been friending? must you have been friending? must she have been friending? must we have been friending? must you have been friending? must they have been friending?

Interro-negative form

Simple form	V-ing form
mustn't I friend? mustn't you friend? mustn't she friend? mustn't we friend? mustn't you friend? mustn't they friend?	mustn't I be friending? mustn't you be friending? mustn't she be friending? mustn't we be friending? mustn't you be friending? mustn't they be friending?
Perfect	V-ing perfect
mustn't I have friended? mustn't you have friended? mustn't she have friended? mustn't we have friended? mustn't you have friended? mustn't they have friended?	mustn't I have been friending? mustn't you have been friending? mustn't she have been friending? mustn't we have been friending? mustn't you have been friending? mustn't they have been friending?