Question

he has more knowledge than my brother.
comparative into positive degree
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Answer 1

Answer:

Changing something from comparative degree (or superlative degree) into the positive involves removing the comparison to other things or people and changing the form of the adjective/adverb.

"Better" is an irregular adjective. The three degrees are "good", "better", and "best". So, if you want to make something into the positive degree, you use the word "good".

He is good.

This can sound a bit odd because "good" (when used alone) has the added meaning of "behaving in a moral fashion".

behaving correctly or being right according to accepted moral standards

It is similar to "he is a good person".

To avoid this "better" is usually defined more specifically by saying what someone is better at or how something is better:

This cake tastes better than that one.

I'm better at math

Answer 2

Answer:

Adding –er to the positive form of the adjective. Adding the word more before the adjective.

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The comparative form

Words ending with 'e', add 'r' to the end of the word (e.g., lame → lamer).

Words with one vowel and one consonant at the end, double the consonant and add –er to the end of the word (e.g., big → bigger).