Mi amas
Here's a breakdown:
* Mi - I
* amas - loves (present tense, singular)
You can also use different verbs depending on the context, such as:
* Mi ŝatas - I like (less intense than "love")
* Mi adoras - I adore (stronger than "love")
* Mi karas - I cherish (implies affection and care)
The choice of verb depends on the specific emotion you want to express.