Present Tense: write / writes

The students write as the teacher talks.

Present Continuous Tense: (be) writing

They're writing as he speaks.

Past Tense: wrote

The students wrote the words on the whiteboard.

Infinitive: Many students like to write new words in their notebooks.

Gerund: Kim believes that writing new vocabulary words will help her remember them.

  This is Kim. She's a student from South Korea.