Adjectives are usually placed before the noun they modify. However, they can also appear after the verb "to be" or other linking verbs, such as "seem," "appear," "become," etc. When multiple adjectives are used to modify the same noun, they are typically separated by commas.
Adjectives can be compared using three degrees: positive, comparative, and superlative. The positive degree is used when no comparison is made, the comparative degree is used to compare two things, and the superlative degree is used to compare three or more things.
Here are some examples of adjectives in sentences: