English verb conjugation
MUST HARM

Regular verb: harm - harmed - harmed

Affirmation

Simple form	V-ing form
I must harm you must harm he must harm we must harm you must harm they must harm	I must be harming you must be harming he must be harming we must be harming you must be harming they must be harming
Perfect	V-ing perfect
I must have harmed you must have harmed he must have harmed we must have harmed you must have harmed they must have harmed	I must have been harming you must have been harming he must have been harming we must have been harming you must have been harming they must have been harming

Negation

Simple form	V-ing form
I mustn't harm you mustn't harm he mustn't harm we mustn't harm you mustn't harm they mustn't harm	I mustn't be harming you mustn't be harming he mustn't be harming we mustn't be harming you mustn't be harming they mustn't be harming
Perfect	V-ing perfect
I mustn't have harmed you mustn't have harmed he mustn't have harmed we mustn't have harmed you mustn't have harmed they mustn't have harmed	I mustn't have been harming you mustn't have been harming he mustn't have been harming we mustn't have been harming you mustn't have been harming they mustn't have been harming

Interrogative form

Simple form	V-ing form
must I harm? must you harm? must he harm? must we harm? must you harm? must they harm?	must I be harming? must you be harming? must he be harming? must we be harming? must you be harming? must they be harming?
Perfect	V-ing perfect
must I have harmed? must you have harmed? must he have harmed? must we have harmed? must you have harmed? must they have harmed?	must I have been harming? must you have been harming? must he have been harming? must we have been harming? must you have been harming? must they have been harming?

Interro-negative form

Simple form	V-ing form
mustn't I harm? mustn't you harm? mustn't he harm? mustn't we harm? mustn't you harm? mustn't they harm?	mustn't I be harming? mustn't you be harming? mustn't he be harming? mustn't we be harming? mustn't you be harming? mustn't they be harming?
Perfect	V-ing perfect
mustn't I have harmed? mustn't you have harmed? mustn't he have harmed? mustn't we have harmed? mustn't you have harmed? mustn't they have harmed?	mustn't I have been harming? mustn't you have been harming? mustn't he have been harming? mustn't we have been harming? mustn't you have been harming? mustn't they have been harming?