English verb conjugation
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Regular verb: energise - energised - energised

Affirmation

Simple form	V-ing form
I must energise you must energise he must energise we must energise you must energise they must energise	I must be energising you must be energising he must be energising we must be energising you must be energising they must be energising
Perfect	V-ing perfect
I must have energised you must have energised he must have energised we must have energised you must have energised they must have energised	I must have been energising you must have been energising he must have been energising we must have been energising you must have been energising they must have been energising

Negation

Simple form	V-ing form
I must not energise you must not energise he must not energise we must not energise you must not energise they must not energise	I must not be energising you must not be energising he must not be energising we must not be energising you must not be energising they must not be energising
Perfect	V-ing perfect
I must not have energised you must not have energised he must not have energised we must not have energised you must not have energised they must not have energised	I must not have been energising you must not have been energising he must not have been energising we must not have been energising you must not have been energising they must not have been energising

Interrogative form

Simple form	V-ing form
must I energise? must you energise? must he energise? must we energise? must you energise? must they energise?	must I be energising? must you be energising? must he be energising? must we be energising? must you be energising? must they be energising?
Perfect	V-ing perfect
must I have energised? must you have energised? must he have energised? must we have energised? must you have energised? must they have energised?	must I have been energising? must you have been energising? must he have been energising? must we have been energising? must you have been energising? must they have been energising?

Interro-negative form

Simple form	V-ing form
must I not energise? must you not energise? must he not energise? must we not energise? must you not energise? must they not energise?	must I not be energising? must you not be energising? must he not be energising? must we not be energising? must you not be energising? must they not be energising?
Perfect	V-ing perfect
must I not have energised? must you not have energised? must he not have energised? must we not have energised? must you not have energised? must they not have energised?	must I not have been energising? must you not have been energising? must he not have been energising? must we not have been energising? must you not have been energising? must they not have been energising?