Adverbs have comparative forms similar to adjectives. For example:
- She runs more quickly than me.

For adverbs ending in -ly, add more in front of the adverb. For example:
- Jake works slowly >> Jake works more slowly than Mark, but he doesn't make many mistakes.
- He understands easily. >> He understands more easily than before.

he sed as a preposition, it means something is similar to or resembles something else. For example:
- She looks like my friend Mona. (She looks similar to Mona)
- She sings like a bird. (Her voice reminds me of a bird)

Irregular adjectives and adjectives usually have the same comparative form. Here's some common adjectives and adverbs with the same comparative form.
-

good
fast
bad
far
hard

well
fast
badly
far
hard

better
faster
worse
farther or further
harder

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