English verb conjugation
MUST SWERVE

Regular verb: swerve - swerved - swerved

Affirmation

Simple form	V-ing form
I must swerve you must swerve she must swerve we must swerve you must swerve they must swerve	I must be swerving you must be swerving she must be swerving we must be swerving you must be swerving they must be swerving
Perfect	V-ing perfect
I must have swerved you must have swerved she must have swerved we must have swerved you must have swerved they must have swerved	I must have been swerving you must have been swerving she must have been swerving we must have been swerving you must have been swerving they must have been swerving

Negation

Simple form	V-ing form
I mustn't swerve you mustn't swerve she mustn't swerve we mustn't swerve you mustn't swerve they mustn't swerve	I mustn't be swerving you mustn't be swerving she mustn't be swerving we mustn't be swerving you mustn't be swerving they mustn't be swerving
Perfect	V-ing perfect
I mustn't have swerved you mustn't have swerved she mustn't have swerved we mustn't have swerved you mustn't have swerved they mustn't have swerved	I mustn't have been swerving you mustn't have been swerving she mustn't have been swerving we mustn't have been swerving you mustn't have been swerving they mustn't have been swerving

Interrogative form

Simple form	V-ing form
must I swerve? must you swerve? must she swerve? must we swerve? must you swerve? must they swerve?	must I be swerving? must you be swerving? must she be swerving? must we be swerving? must you be swerving? must they be swerving?
Perfect	V-ing perfect
must I have swerved? must you have swerved? must she have swerved? must we have swerved? must you have swerved? must they have swerved?	must I have been swerving? must you have been swerving? must she have been swerving? must we have been swerving? must you have been swerving? must they have been swerving?

Interro-negative form

Simple form	V-ing form
mustn't I swerve? mustn't you swerve? mustn't she swerve? mustn't we swerve? mustn't you swerve? mustn't they swerve?	mustn't I be swerving? mustn't you be swerving? mustn't she be swerving? mustn't we be swerving? mustn't you be swerving? mustn't they be swerving?
Perfect	V-ing perfect
mustn't I have swerved? mustn't you have swerved? mustn't she have swerved? mustn't we have swerved? mustn't you have swerved? mustn't they have swerved?	mustn't I have been swerving? mustn't you have been swerving? mustn't she have been swerving? mustn't we have been swerving? mustn't you have been swerving? mustn't they have been swerving?