English verb conjugation
MUST BESTIR

Regular verb: bestir - bestirred - bestirred

Affirmation

Simple form	V-ing form
I must bestir you must bestir she must bestir we must bestir you must bestir they must bestir	I must be bestirring you must be bestirring she must be bestirring we must be bestirring you must be bestirring they must be bestirring
Perfect	V-ing perfect
I must have bestirred you must have bestirred she must have bestirred we must have bestirred you must have bestirred they must have bestirred	I must have been bestirring you must have been bestirring she must have been bestirring we must have been bestirring you must have been bestirring they must have been bestirring

Negation

Simple form	V-ing form
I mustn't bestir you mustn't bestir she mustn't bestir we mustn't bestir you mustn't bestir they mustn't bestir	I mustn't be bestirring you mustn't be bestirring she mustn't be bestirring we mustn't be bestirring you mustn't be bestirring they mustn't be bestirring
Perfect	V-ing perfect
I mustn't have bestirred you mustn't have bestirred she mustn't have bestirred we mustn't have bestirred you mustn't have bestirred they mustn't have bestirred	I mustn't have been bestirring you mustn't have been bestirring she mustn't have been bestirring we mustn't have been bestirring you mustn't have been bestirring they mustn't have been bestirring

Interrogative form

Simple form	V-ing form
must I bestir? must you bestir? must she bestir? must we bestir? must you bestir? must they bestir?	must I be bestirring? must you be bestirring? must she be bestirring? must we be bestirring? must you be bestirring? must they be bestirring?
Perfect	V-ing perfect
must I have bestirred? must you have bestirred? must she have bestirred? must we have bestirred? must you have bestirred? must they have bestirred?	must I have been bestirring? must you have been bestirring? must she have been bestirring? must we have been bestirring? must you have been bestirring? must they have been bestirring?

Interro-negative form

Simple form	V-ing form
mustn't I bestir? mustn't you bestir? mustn't she bestir? mustn't we bestir? mustn't you bestir? mustn't they bestir?	mustn't I be bestirring? mustn't you be bestirring? mustn't she be bestirring? mustn't we be bestirring? mustn't you be bestirring? mustn't they be bestirring?
Perfect	V-ing perfect
mustn't I have bestirred? mustn't you have bestirred? mustn't she have bestirred? mustn't we have bestirred? mustn't you have bestirred? mustn't they have bestirred?	mustn't I have been bestirring? mustn't you have been bestirring? mustn't she have been bestirring? mustn't we have been bestirring? mustn't you have been bestirring? mustn't they have been bestirring?