must subcontract
Verbo regular: subcontract - subcontracted- subcontracted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must subcontract
you must subcontract
she must subcontract
we must subcontract
you must subcontract
they must subcontract 	I must be subcontracting
you must be subcontracting
she must be subcontracting
we must be subcontracting
you must be subcontracting
they must be subcontracting	I must have subcontracted
you must have subcontracted
she must have subcontracted
we must have subcontracted
you must have subcontracted
they must have subcontracted	I must have been subcontracting
you must have been subcontracting
she must have been subcontracting
we must have been subcontracting
you must have been subcontracting
they must have been subcontracting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not subcontract
you must not subcontract
she must not subcontract
we must not subcontract
you must not subcontract
they must not subcontract 	I must not be subcontracting
you must not be subcontracting
she must not be subcontracting
we must not be subcontracting
you must not be subcontracting
they must not be subcontracting	I must not have subcontracted
you must not have subcontracted
she must not have subcontracted
we must not have subcontracted
you must not have subcontracted
they must not have subcontracted	I must not have been subcontracting
you must not have been subcontracting
she must not have been subcontracting
we must not have been subcontracting
you must not have been subcontracting
they must not have been subcontracting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I subcontract?
must you subcontract?
must she subcontract?
must we subcontract?
must you subcontract?
must they subcontract? 	must I be subcontracting?
must you be subcontracting?
must she be subcontracting?
must we be subcontracting?
must you be subcontracting?
must they be subcontracting? 	must I have subcontracted?
must you have subcontracted?
must she have subcontracted?
must we have subcontracted?
must you have subcontracted?
must they have subcontracted? 	must I have been subcontracting?
must you have been subcontracting?
must she have been subcontracting?
must we have been subcontracting?
must you have been subcontracting?
must they have been subcontracting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not subcontract?
must you not subcontract?
must she not subcontract?
must we not subcontract?
must you not subcontract?
must they not subcontract? 	must I not be subcontracting?
must you not be subcontracting?
must she not be subcontracting?
must we not be subcontracting?
must you not be subcontracting?
must they not be subcontracting? 	must I not have subcontracted?
must you not have subcontracted?
must she not have subcontracted?
must we not have subcontracted?
must you not have subcontracted?
must they not have subcontracted? 	must I not have been subcontracting?
must you not have been subcontracting?
must she not have been subcontracting?
must we not have been subcontracting?
must you not have been subcontracting?
must they not have been subcontracting?