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
he must subcontract
we must subcontract
you must subcontract
they must subcontract 	I must be subcontracting
you must be subcontracting
he must be subcontracting
we must be subcontracting
you must be subcontracting
they must be subcontracting	I must have subcontracted
you must have subcontracted
he 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
he 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
he 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
he 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
he 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
he 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 he subcontract?
must we subcontract?
must you subcontract?
must they subcontract? 	must I be subcontracting?
must you be subcontracting?
must he be subcontracting?
must we be subcontracting?
must you be subcontracting?
must they be subcontracting? 	must I have subcontracted?
must you have subcontracted?
must he 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 he 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 he 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 he 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 he 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 he not have been subcontracting?
must we not have been subcontracting?
must you not have been subcontracting?
must they not have been subcontracting?