Question

she writes with a pencil what is object in this sentence​

Answer 1

“I write with a pen” is correct, assuming you wish to say you are using an ink-filled writing instrument. “I write by pen” is incorrect. “I write in a pen” is a good sentence; that is, if you saying that while you write, you are sitting in a small, confined space.”. ( “Pen” also means an enclosure which keeps a person or persons confined. A playpen is a confined space for babies. “The pen” is another word for “prison”. Therefore , “I write in a pen” has another meaning besides the one you intended.

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