Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could accredit accredit you could accredit accredit he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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 he 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?