English verb conjugation
MUST SWERVE

Regular verb: swerve - swerved - swerved

Affirmation

Simple form	V-ing form
I must swerve you must swerve he must swerve we must swerve you must swerve they must swerve	I must be swerving you must be swerving he 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 he 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 he 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 he 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 he 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 he 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 he 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 he swerve? must we swerve? must you swerve? must they swerve?	must I be swerving? must you be swerving? must he 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 he 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 he 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 he 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 he 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 he 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 he have been swerving? mustn't we have been swerving? mustn't you have been swerving? mustn't they have been swerving?