For meals:
* "On mange" (Formal and informal) - This literally means "we eat" but is used to say "we are having" when referring to a meal.
For other situations:
* "On a" (Formal and informal) - This literally means "we have" and is used in situations where you are describing something you are experiencing or possessing. For example, "On a du plaisir" (We are having fun).
For more specific contexts, you can use different verb conjugations:
* "Nous avons" (Formal) - This means "we have" and is used in more formal situations.
* "Nous sommes en train de" (Formal and informal) - This means "we are in the process of" and is used to emphasize that an action is ongoing. For example, "Nous sommes en train de regarder un film" (We are watching a movie).
Here are some examples of how to use these phrases:
* "On mange du poulet ce soir." (We are having chicken tonight.)
* "On a un problème." (We are having a problem.)
* "Nous avons une réunion ce matin." (We are having a meeting this morning.)
* "Nous sommes en train de discuter." (We are having a discussion.)
It's important to choose the right phrase based on the context and formality of the situation.