I saw the pilot eject.
The pilot was seen eject. Not OK.
The pilot was seen to eject.
I saw the pilot be ejected. Not OK.
The pilot was seen to be ejected.
I was seeing the pilot eject.
The pilot was being seen (by me) to eject. Not OK.
I saw only the pilot not eject. Not OK?
Only the pilot was seen not to eject.
Things will change pretty dramatically if we replace the perception verb
see with
watch or
observe…