must ensure
Regular verb: ensure - ensured- ensured

Affirmation 	
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I must ensure
you must ensure
she must ensure
we must ensure
you must ensure
they must ensure 	I must be ensuring
you must be ensuring
she must be ensuring
we must be ensuring
you must be ensuring
they must be ensuring	I must have ensured
you must have ensured
she must have ensured
we must have ensured
you must have ensured
they must have ensured	I must have been ensuring
you must have been ensuring
she must have been ensuring
we must have been ensuring
you must have been ensuring
they must have been ensuring	

Negation 	
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I must not ensure
you must not ensure
she must not ensure
we must not ensure
you must not ensure
they must not ensure 	I must not be ensuring
you must not be ensuring
she must not be ensuring
we must not be ensuring
you must not be ensuring
they must not be ensuring	I must not have ensured
you must not have ensured
she must not have ensured
we must not have ensured
you must not have ensured
they must not have ensured	I must not have been ensuring
you must not have been ensuring
she must not have been ensuring
we must not have been ensuring
you must not have been ensuring
they must not have been ensuring	

Interrogative form 	
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must I ensure?
must you ensure?
must she ensure?
must we ensure?
must you ensure?
must they ensure? 	must I be ensuring?
must you be ensuring?
must she be ensuring?
must we be ensuring?
must you be ensuring?
must they be ensuring? 	must I have ensured?
must you have ensured?
must she have ensured?
must we have ensured?
must you have ensured?
must they have ensured? 	must I have been ensuring?
must you have been ensuring?
must she have been ensuring?
must we have been ensuring?
must you have been ensuring?
must they have been ensuring? 	

Interro-negative form 	
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must I not ensure?
must you not ensure?
must she not ensure?
must we not ensure?
must you not ensure?
must they not ensure? 	must I not be ensuring?
must you not be ensuring?
must she not be ensuring?
must we not be ensuring?
must you not be ensuring?
must they not be ensuring? 	must I not have ensured?
must you not have ensured?
must she not have ensured?
must we not have ensured?
must you not have ensured?
must they not have ensured? 	must I not have been ensuring?
must you not have been ensuring?
must she not have been ensuring?
must we not have been ensuring?
must you not have been ensuring?
must they not have been ensuring?