1) The word "happily" includes the suffixment "-ly".

2) The suffixment "-est" can be used to indicate the superlative form of adjectives.

3) You can create new words by adding the suffixment "-ness" to certain adjectives.

4) Some words in English end with the suffixment "-ment" to signify a state or condition.

5) The suffixment "-ize" is commonly used to form verbs from nouns or adjectives.

6) By adding the suffixment "-ful" to the word "wonder," you can create "wonderful."

7) The suffixment "-er" can be used to form comparative adjectives.

8) "Forgiveness" is a noun formed by adding the suffixment "-ness" to the verb "forgive."

9) The word "certainly" includes the suffixment "-ly" to indicate manner.

10) "Quickly" demonstrates the addition of the suffixment "-ly" to the adjective "quick."