Express $\forall n \in \mathbb N$, $\exists m \in \mathbb N$, $n^4 = m^2$ in words without using the symbol $\mathbb N$.
My Solution:
For all $n$ that is an element of Natural number there is $m$ that is also an element of natural number such that $n^4 = m^2.$
Can I have a feed back on my solution or explanation on how to do the problem.
Your translation is equivalent to the symbolic statement, and you omitted the symbol $\mathbb N$. So it successfully satisfies (answers) the question.
But you might want to take the next step to try "naturalize" the statement into natural language:
"For every natural number $n$, there is a natural number $m$ such that $n^4 = m^2$."
Or, more simply yet: "Every perfect fourth power is also a perfect square."
Can you see that the statement is true?
For every $n\in \mathbb N$, choose $m = n^2$. Choose any $n \in \mathbb N$. For this choice, put $m = n^2$. Then $n^4 = (n^2)^2 = m^2$.