Question

Which of the following sentences is correctly punctuated?
I have taken notes on your book however I still have questions.
I have taken notes on your book, however I still have questions.
I have taken notes on your book; however, I still have questions.
I have taken notes on your book however; I still have questions.

Answer 1

I have taken notes on your book; however, I still have questions.

This is the correct formation.

The comma is placed with however because of the coordination conjunction so that a sentence can hold a proper meaning while reading.

In here, it is done because however is a dependent clause for both the sentences.

Answer 2

Hi,

Here is your answer,

The correct sentence is " I have taken notes on your book; however, I still have questions''

Hope it helps you!