I could tape-record you could tape-record she could tape-record we could tape-record you could tape-record they could tape-record
V-ing form
I could be tape-recording you could be tape-recording she could be tape-recording we could be tape-recording you could be tape-recording they could be tape-recording
Perfect
I could have tape-recorded you could have tape-recorded she could have tape-recorded we could have tape-recorded you could have tape-recorded they could have tape-recorded
V-ing perfect
I could have been tape-recording you could have been tape-recording she could have been tape-recording we could have been tape-recording you could have been tape-recording they could have been tape-recording
Negation
Simple form
I couldn't tape-record you couldn't tape-record she couldn't tape-record we couldn't tape-record you couldn't tape-record they couldn't tape-record
V-ing form
I couldn't be tape-recording you couldn't be tape-recording she couldn't be tape-recording we couldn't be tape-recording you couldn't be tape-recording they couldn't be tape-recording
Perfect
I couldn't have tape-recorded you couldn't have tape-recorded she couldn't have tape-recorded we couldn't have tape-recorded you couldn't have tape-recorded they couldn't have tape-recorded
V-ing perfect
I couldn't have been tape-recording you couldn't have been tape-recording she couldn't have been tape-recording we couldn't have been tape-recording you couldn't have been tape-recording they couldn't have been tape-recording
Interrogative form
Simple form
could I tape-record? could you tape-record? could she tape-record? could we tape-record? could you tape-record? could they tape-record?
V-ing form
could I be tape-recording? could you be tape-recording? could she be tape-recording? could we be tape-recording? could you be tape-recording? could they be tape-recording?
Perfect
could I have tape-recorded? could you have tape-recorded? could she have tape-recorded? could we have tape-recorded? could you have tape-recorded? could they have tape-recorded?
V-ing perfect
could I have been tape-recording? could you have been tape-recording? could she have been tape-recording? could we have been tape-recording? could you have been tape-recording? could they have been tape-recording?
Interro-negative form
Simple form
couldn't I tape-record? couldn't you tape-record? couldn't she tape-record? couldn't we tape-record? couldn't you tape-record? couldn't they tape-record?
V-ing form
couldn't I be tape-recording? couldn't you be tape-recording? couldn't she be tape-recording? couldn't we be tape-recording? couldn't you be tape-recording? couldn't they be tape-recording?
Perfect
couldn't I have tape-recorded? couldn't you have tape-recorded? couldn't she have tape-recorded? couldn't we have tape-recorded? couldn't you have tape-recorded? couldn't they have tape-recorded?
V-ing perfect
couldn't I have been tape-recording? couldn't you have been tape-recording? couldn't she have been tape-recording? couldn't we have been tape-recording? couldn't you have been tape-recording? couldn't they have been tape-recording?