Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could accredit accredit you could accredit accredit she could accredit accredit we could accredit accredit you could accredit accredit they could accredit accredit
V-ing form
I could be accredit accrediting you could be accredit accrediting she could be accredit accrediting we could be accredit accrediting you could be accredit accrediting they could be accredit accrediting
Perfect
I could have accredit accredited you could have accredit accredited she could have accredit accredited we could have accredit accredited you could have accredit accredited they could have accredit accredited
V-ing perfect
I could have been accredit accrediting you could have been accredit accrediting she could have been accredit accrediting we could have been accredit accrediting you could have been accredit accrediting they could have been accredit accrediting
Negation
Simple form
I couldn't accredit accredit you couldn't accredit accredit she couldn't accredit accredit we couldn't accredit accredit you couldn't accredit accredit they couldn't accredit accredit
V-ing form
I couldn't be accredit accrediting you couldn't be accredit accrediting she couldn't be accredit accrediting we couldn't be accredit accrediting you couldn't be accredit accrediting they couldn't be accredit accrediting
Perfect
I couldn't have accredit accredited you couldn't have accredit accredited she couldn't have accredit accredited we couldn't have accredit accredited you couldn't have accredit accredited they couldn't have accredit accredited
V-ing perfect
I couldn't have been accredit accrediting you couldn't have been accredit accrediting she couldn't have been accredit accrediting we couldn't have been accredit accrediting you couldn't have been accredit accrediting they couldn't have been accredit accrediting
Interrogative form
Simple form
could I accredit accredit? could you accredit accredit? could she accredit accredit? could we accredit accredit? could you accredit accredit? could they accredit accredit?
V-ing form
could I be accredit accrediting? could you be accredit accrediting? could she be accredit accrediting? could we be accredit accrediting? could you be accredit accrediting? could they be accredit accrediting?
Perfect
could I have accredit accredited? could you have accredit accredited? could she have accredit accredited? could we have accredit accredited? could you have accredit accredited? could they have accredit accredited?
V-ing perfect
could I have been accredit accrediting? could you have been accredit accrediting? could she have been accredit accrediting? could we have been accredit accrediting? could you have been accredit accrediting? could they have been accredit accrediting?
Interro-negative form
Simple form
couldn't I accredit accredit? couldn't you accredit accredit? couldn't she accredit accredit? couldn't we accredit accredit? couldn't you accredit accredit? couldn't they accredit accredit?
V-ing form
couldn't I be accredit accrediting? couldn't you be accredit accrediting? couldn't she be accredit accrediting? couldn't we be accredit accrediting? couldn't you be accredit accrediting? couldn't they be accredit accrediting?
Perfect
couldn't I have accredit accredited? couldn't you have accredit accredited? couldn't she have accredit accredited? couldn't we have accredit accredited? couldn't you have accredit accredited? couldn't they have accredit accredited?
V-ing perfect
couldn't I have been accredit accrediting? couldn't you have been accredit accrediting? couldn't she have been accredit accrediting? couldn't we have been accredit accrediting? couldn't you have been accredit accrediting? couldn't they have been accredit accrediting?