could accredit
Regular verb: accredit - accredited- accredited

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could accredit
you could accredit
she could accredit
we could accredit
you could accredit
they could accredit 	I could be accrediting
you could be accrediting
she could be accrediting
we could be accrediting
you could be accrediting
they could be accrediting	I could have accredited
you could have accredited
she could have accredited
we could have accredited
you could have accredited
they could have accredited	I could have been accrediting
you could have been accrediting
she could have been accrediting
we could have been accrediting
you could have been accrediting
they could have been accrediting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't accredit
you couldn't accredit
she couldn't accredit
we couldn't accredit
you couldn't accredit
they couldn't accredit 	I couldn't be accrediting
you couldn't be accrediting
she couldn't be accrediting
we couldn't be accrediting
you couldn't be accrediting
they couldn't be accrediting	I couldn't have accredited
you couldn't have accredited
she couldn't have accredited
we couldn't have accredited
you couldn't have accredited
they couldn't have accredited	I couldn't have been accrediting
you couldn't have been accrediting
she couldn't have been accrediting
we couldn't have been accrediting
you couldn't have been accrediting
they couldn't have been accrediting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I accredit?
could you accredit?
could she accredit?
could we accredit?
could you accredit?
could they accredit? 	could I be accrediting?
could you be accrediting?
could she be accrediting?
could we be accrediting?
could you be accrediting?
could they be accrediting? 	could I have accredited?
could you have accredited?
could she have accredited?
could we have accredited?
could you have accredited?
could they have accredited? 	could I have been accrediting?
could you have been accrediting?
could she have been accrediting?
could we have been accrediting?
could you have been accrediting?
could they have been accrediting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I accredit?
couldn't you accredit?
couldn't she accredit?
couldn't we accredit?
couldn't you accredit?
couldn't they accredit? 	couldn't I be accrediting?
couldn't you be accrediting?
couldn't she be accrediting?
couldn't we be accrediting?
couldn't you be accrediting?
couldn't they be accrediting? 	couldn't I have accredited?
couldn't you have accredited?
couldn't she have accredited?
couldn't we have accredited?
couldn't you have accredited?
couldn't they have accredited? 	couldn't I have been accrediting?
couldn't you have been accrediting?
couldn't she have been accrediting?
couldn't we have been accrediting?
couldn't you have been accrediting?
couldn't they have been accrediting?