Here's how:
* Suffixes can change the part of speech:
* "run" (verb) + "-er" = "runner" (noun)
* "happy" (adjective) + "-ly" = "happily" (adverb)
* Suffixes can add specific meanings:
* "care" + "-ful" = "careful" (meaning "showing care")
* "beauty" + "-ful" = "beautiful" (meaning "having beauty")
* Suffixes can create new words:
* "friend" + "-ship" = "friendship" (a noun representing the state of being friends)
* "child" + "-hood" = "childhood" (a noun representing the period of being a child)
Let me know if you'd like more examples!