1. I want something for writing;any pen or pencil will be OK.

2. I want something for writing with;any pen or pencil will be OK.

3.I want something for writing.

4. I want something for writing with.

(Are they correct? If I remove the latter part, are they correct? Check the four sentences, please.)

It was Winston Churchill who said "Never end a sentence a preposition with!" #2, I want something to write with = is more common.

#4 again, I want something to write with = is more common.

Sra