Question

He is too young to join the army.(Remove too)grammar

Answer 1

He is so young that he cannot join the army

Answer 2

To remove a too from a sentence one has to follow the following steps.

First remove to and then  the rest of the part of the sentence.

Pattern is , subject +verb+so+adjective/adverb +that +pronoun + (can't, couldn't) rest of the sentence.

So the correct statement after removing too will  be ;he is so young that he cannot join the army