English verb conjugation
MUST DIFFERENTIATE

Regular verb: differentiate - differentiated - differentiated

Affirmation

Simple form	V-ing form
I must differentiate you must differentiate she must differentiate we must differentiate you must differentiate they must differentiate	I must be differentiating you must be differentiating she must be differentiating we must be differentiating you must be differentiating they must be differentiating
Perfect	V-ing perfect
I must have differentiated you must have differentiated she must have differentiated we must have differentiated you must have differentiated they must have differentiated	I must have been differentiating you must have been differentiating she must have been differentiating we must have been differentiating you must have been differentiating they must have been differentiating

Negation

Simple form	V-ing form
I mustn't differentiate you mustn't differentiate she mustn't differentiate we mustn't differentiate you mustn't differentiate they mustn't differentiate	I mustn't be differentiating you mustn't be differentiating she mustn't be differentiating we mustn't be differentiating you mustn't be differentiating they mustn't be differentiating
Perfect	V-ing perfect
I mustn't have differentiated you mustn't have differentiated she mustn't have differentiated we mustn't have differentiated you mustn't have differentiated they mustn't have differentiated	I mustn't have been differentiating you mustn't have been differentiating she mustn't have been differentiating we mustn't have been differentiating you mustn't have been differentiating they mustn't have been differentiating

Interrogative form

Simple form	V-ing form
must I differentiate? must you differentiate? must she differentiate? must we differentiate? must you differentiate? must they differentiate?	must I be differentiating? must you be differentiating? must she be differentiating? must we be differentiating? must you be differentiating? must they be differentiating?
Perfect	V-ing perfect
must I have differentiated? must you have differentiated? must she have differentiated? must we have differentiated? must you have differentiated? must they have differentiated?	must I have been differentiating? must you have been differentiating? must she have been differentiating? must we have been differentiating? must you have been differentiating? must they have been differentiating?

Interro-negative form

Simple form	V-ing form
mustn't I differentiate? mustn't you differentiate? mustn't she differentiate? mustn't we differentiate? mustn't you differentiate? mustn't they differentiate?	mustn't I be differentiating? mustn't you be differentiating? mustn't she be differentiating? mustn't we be differentiating? mustn't you be differentiating? mustn't they be differentiating?
Perfect	V-ing perfect
mustn't I have differentiated? mustn't you have differentiated? mustn't she have differentiated? mustn't we have differentiated? mustn't you have differentiated? mustn't they have differentiated?	mustn't I have been differentiating? mustn't you have been differentiating? mustn't she have been differentiating? mustn't we have been differentiating? mustn't you have been differentiating? mustn't they have been differentiating?