must accredit
Verbo regular: accredit - accredited- accredited

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must accredit
you must accredit
he must accredit
we must accredit
you must accredit
they must accredit 	I must be accrediting
you must be accrediting
he must be accrediting
we must be accrediting
you must be accrediting
they must be accrediting	I must have accredited
you must have accredited
he must have accredited
we must have accredited
you must have accredited
they must have accredited	I must have been accrediting
you must have been accrediting
he must have been accrediting
we must have been accrediting
you must have been accrediting
they must have been accrediting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not accredit
you must not accredit
he must not accredit
we must not accredit
you must not accredit
they must not accredit 	I must not be accrediting
you must not be accrediting
he must not be accrediting
we must not be accrediting
you must not be accrediting
they must not be accrediting	I must not have accredited
you must not have accredited
he must not have accredited
we must not have accredited
you must not have accredited
they must not have accredited	I must not have been accrediting
you must not have been accrediting
he must not have been accrediting
we must not have been accrediting
you must not have been accrediting
they must not have been accrediting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I accredit?
must you accredit?
must he accredit?
must we accredit?
must you accredit?
must they accredit? 	must I be accrediting?
must you be accrediting?
must he be accrediting?
must we be accrediting?
must you be accrediting?
must they be accrediting? 	must I have accredited?
must you have accredited?
must he have accredited?
must we have accredited?
must you have accredited?
must they have accredited? 	must I have been accrediting?
must you have been accrediting?
must he have been accrediting?
must we have been accrediting?
must you have been accrediting?
must they have been accrediting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not accredit?
must you not accredit?
must he not accredit?
must we not accredit?
must you not accredit?
must they not accredit? 	must I not be accrediting?
must you not be accrediting?
must he not be accrediting?
must we not be accrediting?
must you not be accrediting?
must they not be accrediting? 	must I not have accredited?
must you not have accredited?
must he not have accredited?
must we not have accredited?
must you not have accredited?
must they not have accredited? 	must I not have been accrediting?
must you not have been accrediting?
must he not have been accrediting?
must we not have been accrediting?
must you not have been accrediting?
must they not have been accrediting?