Relative & Participle Clauses

Our CTO who, used to work at NASA, joined last year.
Our CTO, who used to work at NASA, joined last year.
Our CTO who used to work at NASA joined, last year.

the book which is write by Orwell
people which live nearby
people living nearby
the book written by Orwell

Having finished the report, she sent it to the client.
Having finish the report, she sent it to the client.
Finished the report, she sent it to the client.

My car which I rarely use needs, servicing.
My car which, I rarely use needs servicing.
My car, which I rarely use, needs servicing.