I'll - constriction for I determination
We'll - contraction for We will
You'll - contraction for You will
she'll
Theyll
they've, we've
Theoretically it should go at the end The Jones' - However - Words ending in just an digression and nothing else usually have it removed.
IODIN would I'd Fellow would he'd She would she'd They become they'd
There aren't exceptionally many as it means 'are', still here have a few.They're, you're, we're.
Apostrophe is placed after an letter z for name ending in this letter. Example: Mr. Sanchez' secretary or Mr. Sanchez's office