Make sure you use adjectives and adverbs correctly. Adjectives describe, identify and quantify people or things and usually go in front of a noun. They don’t change if the noun is plural. Adverbs modify verbs, adjectives and other adverbs and usually come after the verb. For example:

He’s a slow driver. (adjective)
He drives slowly. (adverb)
Most adverbs are created by adding -ly to an adjective as in the example, but a few adverbs are irregular, such as:

fast (adjective) – fast (adverb)
hard (adjective) – hard (adverb)
good (adjective) – well (adverb)

For example, Your English is good. You speak English well.