English verb conjugation
MUST UNKNOT

Regular verb: unknot - unknotted - unknotted

Affirmation

Simple form	V-ing form
I must unknot you must unknot she must unknot we must unknot you must unknot they must unknot	I must be unknotting you must be unknotting she must be unknotting we must be unknotting you must be unknotting they must be unknotting
Perfect	V-ing perfect
I must have unknotted you must have unknotted she must have unknotted we must have unknotted you must have unknotted they must have unknotted	I must have been unknotting you must have been unknotting she must have been unknotting we must have been unknotting you must have been unknotting they must have been unknotting

Negation

Simple form	V-ing form
I mustn't unknot you mustn't unknot she mustn't unknot we mustn't unknot you mustn't unknot they mustn't unknot	I mustn't be unknotting you mustn't be unknotting she mustn't be unknotting we mustn't be unknotting you mustn't be unknotting they mustn't be unknotting
Perfect	V-ing perfect
I mustn't have unknotted you mustn't have unknotted she mustn't have unknotted we mustn't have unknotted you mustn't have unknotted they mustn't have unknotted	I mustn't have been unknotting you mustn't have been unknotting she mustn't have been unknotting we mustn't have been unknotting you mustn't have been unknotting they mustn't have been unknotting

Interrogative form

Simple form	V-ing form
must I unknot? must you unknot? must she unknot? must we unknot? must you unknot? must they unknot?	must I be unknotting? must you be unknotting? must she be unknotting? must we be unknotting? must you be unknotting? must they be unknotting?
Perfect	V-ing perfect
must I have unknotted? must you have unknotted? must she have unknotted? must we have unknotted? must you have unknotted? must they have unknotted?	must I have been unknotting? must you have been unknotting? must she have been unknotting? must we have been unknotting? must you have been unknotting? must they have been unknotting?

Interro-negative form

Simple form	V-ing form
mustn't I unknot? mustn't you unknot? mustn't she unknot? mustn't we unknot? mustn't you unknot? mustn't they unknot?	mustn't I be unknotting? mustn't you be unknotting? mustn't she be unknotting? mustn't we be unknotting? mustn't you be unknotting? mustn't they be unknotting?
Perfect	V-ing perfect
mustn't I have unknotted? mustn't you have unknotted? mustn't she have unknotted? mustn't we have unknotted? mustn't you have unknotted? mustn't they have unknotted?	mustn't I have been unknotting? mustn't you have been unknotting? mustn't she have been unknotting? mustn't we have been unknotting? mustn't you have been unknotting? mustn't they have been unknotting?