I could transcribe you could transcribe he could transcribe we could transcribe you could transcribe they could transcribe
V-ing form
I could be transcribing you could be transcribing he could be transcribing we could be transcribing you could be transcribing they could be transcribing
Perfect
I could have transcribed you could have transcribed he could have transcribed we could have transcribed you could have transcribed they could have transcribed
V-ing perfect
I could have been transcribing you could have been transcribing he could have been transcribing we could have been transcribing you could have been transcribing they could have been transcribing
Negation
Simple form
I couldn't transcribe you couldn't transcribe he couldn't transcribe we couldn't transcribe you couldn't transcribe they couldn't transcribe
V-ing form
I couldn't be transcribing you couldn't be transcribing he couldn't be transcribing we couldn't be transcribing you couldn't be transcribing they couldn't be transcribing
Perfect
I couldn't have transcribed you couldn't have transcribed he couldn't have transcribed we couldn't have transcribed you couldn't have transcribed they couldn't have transcribed
V-ing perfect
I couldn't have been transcribing you couldn't have been transcribing he couldn't have been transcribing we couldn't have been transcribing you couldn't have been transcribing they couldn't have been transcribing
Interrogative form
Simple form
could I transcribe? could you transcribe? could he transcribe? could we transcribe? could you transcribe? could they transcribe?
V-ing form
could I be transcribing? could you be transcribing? could he be transcribing? could we be transcribing? could you be transcribing? could they be transcribing?
Perfect
could I have transcribed? could you have transcribed? could he have transcribed? could we have transcribed? could you have transcribed? could they have transcribed?
V-ing perfect
could I have been transcribing? could you have been transcribing? could he have been transcribing? could we have been transcribing? could you have been transcribing? could they have been transcribing?
Interro-negative form
Simple form
couldn't I transcribe? couldn't you transcribe? couldn't he transcribe? couldn't we transcribe? couldn't you transcribe? couldn't they transcribe?
V-ing form
couldn't I be transcribing? couldn't you be transcribing? couldn't he be transcribing? couldn't we be transcribing? couldn't you be transcribing? couldn't they be transcribing?
Perfect
couldn't I have transcribed? couldn't you have transcribed? couldn't he have transcribed? couldn't we have transcribed? couldn't you have transcribed? couldn't they have transcribed?
V-ing perfect
couldn't I have been transcribing? couldn't you have been transcribing? couldn't he have been transcribing? couldn't we have been transcribing? couldn't you have been transcribing? couldn't they have been transcribing?