I could orientate you could orientate she could orientate we could orientate you could orientate they could orientate
V-ing form
I could be orientating you could be orientating she could be orientating we could be orientating you could be orientating they could be orientating
Perfect
I could have orientated you could have orientated she could have orientated we could have orientated you could have orientated they could have orientated
V-ing perfect
I could have been orientating you could have been orientating she could have been orientating we could have been orientating you could have been orientating they could have been orientating
Negation
Simple form
I could not orientate you could not orientate she could not orientate we could not orientate you could not orientate they could not orientate
V-ing form
I could not be orientating you could not be orientating she could not be orientating we could not be orientating you could not be orientating they could not be orientating
Perfect
I could not have orientated you could not have orientated she could not have orientated we could not have orientated you could not have orientated they could not have orientated
V-ing perfect
I could not have been orientating you could not have been orientating she could not have been orientating we could not have been orientating you could not have been orientating they could not have been orientating
Interrogative form
Simple form
could I orientate? could you orientate? could she orientate? could we orientate? could you orientate? could they orientate?
V-ing form
could I be orientating? could you be orientating? could she be orientating? could we be orientating? could you be orientating? could they be orientating?
Perfect
could I have orientated? could you have orientated? could she have orientated? could we have orientated? could you have orientated? could they have orientated?
V-ing perfect
could I have been orientating? could you have been orientating? could she have been orientating? could we have been orientating? could you have been orientating? could they have been orientating?
Interro-negative form
Simple form
could I not orientate? could you not orientate? could she not orientate? could we not orientate? could you not orientate? could they not orientate?
V-ing form
could I not be orientating? could you not be orientating? could she not be orientating? could we not be orientating? could you not be orientating? could they not be orientating?
Perfect
could I not have orientated? could you not have orientated? could she not have orientated? could we not have orientated? could you not have orientated? could they not have orientated?
V-ing perfect
could I not have been orientating? could you not have been orientating? could she not have been orientating? could we not have been orientating? could you not have been orientating? could they not have been orientating?