Hello,
She left London ten years ago, and I haven't seen her since.
She left London ten years ago since, and I haven't seen her..
She has been working there I saw him since.
I would like to ask whether we can use 'since' like that or not.
Thanks....
In your sample sentences, "since" would mean "in that time.'
Substitute "in that time" and see if your sentences make sense.
This doesn't make any sense. If you meant "her" instead of "him" it's still a run-on sentence.She has been working there I saw him since.
What exactly did you mean to say?
She left London ten years ago since, and I haven't seen her.
Is that ok?