Can you help me in correction the punctuation in this article. By the way the subject of the article is about using the hand with the guitar.

The article :

- The placing and motion of the left hand on the strings start from the arm with the thumb. Then end by press
on the strings by fingertips.The pressure on the string starts in placing the finger on the string and end
by lift the fingers ( raise it from the string ) after end the plucking or more clearly after end the time
value of the note. BE CAREFUL, don't relax the finger when lift the string. This will cause a squeak .

The motion of placing the
left hand on the strings starts from the arm and the thumb, then ends by pressing on the strings with the fingertips. The pressure on the string starts in placing the finger on the string and ends by lifting the finger (raising it from the string) after the end of plucking or, more precisely, after the end of the time value of the note. BE CAREFUL: don't relax the finger when lifting it from the string. This will cause a squeak .
What is wongerfull. Thank you very mush

are these plucking, lifting , pressing , nouns or verbs ?
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They are gerunds (verb forms acting as nouns) in your paragraph, Nader.
I have some articles, may I post them here to corretion me?
It would be better to post them in the Writing Forum, which is where I am moving this thread now.
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