Regular verb: differentiate - differentiated - differentiated
Simple form | V-ing form |
I must differentiate you must differentiate he must differentiate we must differentiate you must differentiate they must differentiate | I must be differentiating you must be differentiating he 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 he 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 he must have been differentiating we must have been differentiating you must have been differentiating they must have been differentiating |
Simple form | V-ing form |
I mustn't differentiate you mustn't differentiate he 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 he 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 he 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 he mustn't have been differentiating we mustn't have been differentiating you mustn't have been differentiating they mustn't have been differentiating |
Simple form | V-ing form |
must I differentiate? must you differentiate? must he differentiate? must we differentiate? must you differentiate? must they differentiate? | must I be differentiating? must you be differentiating? must he 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 he 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 he have been differentiating? must we have been differentiating? must you have been differentiating? must they have been differentiating? |
Simple form | V-ing form |
mustn't I differentiate? mustn't you differentiate? mustn't he 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 he 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 he 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 he have been differentiating? mustn't we have been differentiating? mustn't you have been differentiating? mustn't they have been differentiating? |