Conjugación del verbo inglés
MUST RIVE

Verbo irregular: rive - rived - rived, riven

Afirmación

Forma simple	Forma con V-ing
I must rive you must rive he must rive we must rive you must rive they must rive	I must be riving you must be riving he must be riving we must be riving you must be riving they must be riving
Perfecto	Perfecto con V-ing
I must have rived, riven you must have rived, riven he must have rived, riven we must have rived, riven you must have rived, riven they must have rived, riven	I must have been riving you must have been riving he must have been riving we must have been riving you must have been riving they must have been riving

Negación

Forma simple	Forma con V-ing
I must not rive you must not rive he must not rive we must not rive you must not rive they must not rive	I must not be riving you must not be riving he must not be riving we must not be riving you must not be riving they must not be riving
Perfecto	Perfecto con V-ing
I must not have rived, riven you must not have rived, riven he must not have rived, riven we must not have rived, riven you must not have rived, riven they must not have rived, riven	I must not have been riving you must not have been riving he must not have been riving we must not have been riving you must not have been riving they must not have been riving

Forma interrogativa

Forma simple	Forma con V-ing
must I rive? must you rive? must he rive? must we rive? must you rive? must they rive?	must I be riving? must you be riving? must he be riving? must we be riving? must you be riving? must they be riving?
Perfecto	Perfecto con V-ing
must I have rived, riven? must you have rived, riven? must he have rived, riven? must we have rived, riven? must you have rived, riven? must they have rived, riven?	must I have been riving? must you have been riving? must he have been riving? must we have been riving? must you have been riving? must they have been riving?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not rive? must you not rive? must he not rive? must we not rive? must you not rive? must they not rive?	must I not be riving? must you not be riving? must he not be riving? must we not be riving? must you not be riving? must they not be riving?
Perfecto	Perfecto con V-ing
must I not have rived, riven? must you not have rived, riven? must he not have rived, riven? must we not have rived, riven? must you not have rived, riven? must they not have rived, riven?	must I not have been riving? must you not have been riving? must he not have been riving? must we not have been riving? must you not have been riving? must they not have been riving?