I am doing mistake in present tense..do you know any logic for that?
No, there is no logic! It is terrible, but you just have to memorize all the verb forms. That is the worst part of learning a language.
Let me look at the new essay...
No need for "that"
Someone gave invaluable statement:
"Thew past is an experience, present
You have to use "the" with past:
The past teaches us lots of lessons.
Do not capitalize learning because it is not a "proper noun":
Therefore I don't think that learning
about past has no value for those of us living in the present.
It is better to say: Therefore, I do think learning about the past has value for us in the present.
The past gives us a preponderance of experience which might be good or bad.
On the other hand, some people think that thinking about past makes them l
ose their present fun.
They can't become successful in their future life because they don't care about their mistake and don't have any future plans.
Hence, learning about the past has precious value, because it help us to ...
Excellent!! This is great. I hope you practice each correction 10 times, because it is the only way to fine tune your English. You already do everything correctly in a general sense, and you just have miscellaneous mistakes to weed out of the garden of your writing.