English verb conjugation
MUST LOB

Regular verb: lob - lobed - lobed

Affirmation

Simple form	V-ing form
I must lob you must lob she must lob we must lob you must lob they must lob	I must be lobing you must be lobing she must be lobing we must be lobing you must be lobing they must be lobing
Perfect	V-ing perfect
I must have lobed you must have lobed she must have lobed we must have lobed you must have lobed they must have lobed	I must have been lobing you must have been lobing she must have been lobing we must have been lobing you must have been lobing they must have been lobing

Negation

Simple form	V-ing form
I mustn't lob you mustn't lob she mustn't lob we mustn't lob you mustn't lob they mustn't lob	I mustn't be lobing you mustn't be lobing she mustn't be lobing we mustn't be lobing you mustn't be lobing they mustn't be lobing
Perfect	V-ing perfect
I mustn't have lobed you mustn't have lobed she mustn't have lobed we mustn't have lobed you mustn't have lobed they mustn't have lobed	I mustn't have been lobing you mustn't have been lobing she mustn't have been lobing we mustn't have been lobing you mustn't have been lobing they mustn't have been lobing

Interrogative form

Simple form	V-ing form
must I lob? must you lob? must she lob? must we lob? must you lob? must they lob?	must I be lobing? must you be lobing? must she be lobing? must we be lobing? must you be lobing? must they be lobing?
Perfect	V-ing perfect
must I have lobed? must you have lobed? must she have lobed? must we have lobed? must you have lobed? must they have lobed?	must I have been lobing? must you have been lobing? must she have been lobing? must we have been lobing? must you have been lobing? must they have been lobing?

Interro-negative form

Simple form	V-ing form
mustn't I lob? mustn't you lob? mustn't she lob? mustn't we lob? mustn't you lob? mustn't they lob?	mustn't I be lobing? mustn't you be lobing? mustn't she be lobing? mustn't we be lobing? mustn't you be lobing? mustn't they be lobing?
Perfect	V-ing perfect
mustn't I have lobed? mustn't you have lobed? mustn't she have lobed? mustn't we have lobed? mustn't you have lobed? mustn't they have lobed?	mustn't I have been lobing? mustn't you have been lobing? mustn't she have been lobing? mustn't we have been lobing? mustn't you have been lobing? mustn't they have been lobing?