English verb conjugation
MUST ROT

Regular verb: rot - rotted - rotted

Affirmation

Simple form	V-ing form
I must rot you must rot he must rot we must rot you must rot they must rot	I must be rotting you must be rotting he must be rotting we must be rotting you must be rotting they must be rotting
Perfect	V-ing perfect
I must have rotted you must have rotted he must have rotted we must have rotted you must have rotted they must have rotted	I must have been rotting you must have been rotting he must have been rotting we must have been rotting you must have been rotting they must have been rotting

Negation

Simple form	V-ing form
I mustn't rot you mustn't rot he mustn't rot we mustn't rot you mustn't rot they mustn't rot	I mustn't be rotting you mustn't be rotting he mustn't be rotting we mustn't be rotting you mustn't be rotting they mustn't be rotting
Perfect	V-ing perfect
I mustn't have rotted you mustn't have rotted he mustn't have rotted we mustn't have rotted you mustn't have rotted they mustn't have rotted	I mustn't have been rotting you mustn't have been rotting he mustn't have been rotting we mustn't have been rotting you mustn't have been rotting they mustn't have been rotting

Interrogative form

Simple form	V-ing form
must I rot? must you rot? must he rot? must we rot? must you rot? must they rot?	must I be rotting? must you be rotting? must he be rotting? must we be rotting? must you be rotting? must they be rotting?
Perfect	V-ing perfect
must I have rotted? must you have rotted? must he have rotted? must we have rotted? must you have rotted? must they have rotted?	must I have been rotting? must you have been rotting? must he have been rotting? must we have been rotting? must you have been rotting? must they have been rotting?

Interro-negative form

Simple form	V-ing form
mustn't I rot? mustn't you rot? mustn't he rot? mustn't we rot? mustn't you rot? mustn't they rot?	mustn't I be rotting? mustn't you be rotting? mustn't he be rotting? mustn't we be rotting? mustn't you be rotting? mustn't they be rotting?
Perfect	V-ing perfect
mustn't I have rotted? mustn't you have rotted? mustn't he have rotted? mustn't we have rotted? mustn't you have rotted? mustn't they have rotted?	mustn't I have been rotting? mustn't you have been rotting? mustn't he have been rotting? mustn't we have been rotting? mustn't you have been rotting? mustn't they have been rotting?