Formal:
* Nous sommes ici: This is the most formal way to say "we are here."
* Vous êtes ici: This means "you are here" in a formal context.
Informal:
* On est là: This means "we are here" in a more casual and informal way.
* Tu es là: This means "you are here" in an informal context.
Other options:
* Je suis ici: This means "I am here."
* Ils sont ici: This means "they are here."
Example sentences:
* Nous sommes ici pour vous aider. (We are here to help you.)
* On est là pour la fête. (We are here for the party.)
* Tu es là, n'est-ce pas? (You are here, aren't you?)
Remember to choose the appropriate form based on the level of formality of the situation and your relationship with the person you're speaking to.