Here are some examples:
* "Je pleure." (I am crying)
* "Elle pleure beaucoup." (She cries a lot.)
* "Il a pleuré toute la nuit." (He cried all night.)
You can also use the verb "larmoyer", which is a more informal way to say "to cry" and usually implies a less intense type of crying.
For example, you might say:
* "J'ai larmoyé un peu en regardant ce film." (I cried a little bit watching this movie.)