I could interview you could interview she could interview we could interview you could interview they could interview
V-ing form
I could be interviewing you could be interviewing she could be interviewing we could be interviewing you could be interviewing they could be interviewing
Perfect
I could have interviewed you could have interviewed she could have interviewed we could have interviewed you could have interviewed they could have interviewed
V-ing perfect
I could have been interviewing you could have been interviewing she could have been interviewing we could have been interviewing you could have been interviewing they could have been interviewing
Negation
Simple form
I couldn't interview you couldn't interview she couldn't interview we couldn't interview you couldn't interview they couldn't interview
V-ing form
I couldn't be interviewing you couldn't be interviewing she couldn't be interviewing we couldn't be interviewing you couldn't be interviewing they couldn't be interviewing
Perfect
I couldn't have interviewed you couldn't have interviewed she couldn't have interviewed we couldn't have interviewed you couldn't have interviewed they couldn't have interviewed
V-ing perfect
I couldn't have been interviewing you couldn't have been interviewing she couldn't have been interviewing we couldn't have been interviewing you couldn't have been interviewing they couldn't have been interviewing
Interrogative form
Simple form
could I interview? could you interview? could she interview? could we interview? could you interview? could they interview?
V-ing form
could I be interviewing? could you be interviewing? could she be interviewing? could we be interviewing? could you be interviewing? could they be interviewing?
Perfect
could I have interviewed? could you have interviewed? could she have interviewed? could we have interviewed? could you have interviewed? could they have interviewed?
V-ing perfect
could I have been interviewing? could you have been interviewing? could she have been interviewing? could we have been interviewing? could you have been interviewing? could they have been interviewing?
Interro-negative form
Simple form
couldn't I interview? couldn't you interview? couldn't she interview? couldn't we interview? couldn't you interview? couldn't they interview?
V-ing form
couldn't I be interviewing? couldn't you be interviewing? couldn't she be interviewing? couldn't we be interviewing? couldn't you be interviewing? couldn't they be interviewing?
Perfect
couldn't I have interviewed? couldn't you have interviewed? couldn't she have interviewed? couldn't we have interviewed? couldn't you have interviewed? couldn't they have interviewed?
V-ing perfect
couldn't I have been interviewing? couldn't you have been interviewing? couldn't she have been interviewing? couldn't we have been interviewing? couldn't you have been interviewing? couldn't they have been interviewing?