QUESTION: Fix punctuation: Later on I find something else come up I am tempted to impure thoughts
ANS: Later on, I find something else come up. I am tempted to impure thoughts.

QUESTION: Fix punctuation: In some previous paragraph was shown that under certain circumstances some patterns would resemble patterns in metal shavings produced while passing of current through the conductor
ANS: In some previous paragraph was shown, that under certain circumstances, some patterns would resemble patterns in metal shavings produced while passing of current through the conductor.

QUESTION: Fix punctuation: Here you can play all do not think that the Transformers  mans game
ANS: Here you can play all, do not think that the Transformers - "man's" game.

QUESTION: Fix punctuation: Loan signs are sometimes used for emphasis like the loan sign YES substituted for the sign YES but sometimes represent the only form of the sign eg NO
ANS:
Loan signs are sometimes used for emphasis (like the loan sign #YES substituted for the sign YES), but sometimes represent the only form of the sign (e.g., #NO).