What countries use french as their main language?

Here are the countries where French is an official language, and therefore considered the main language:

* Africa: Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Comoros, Côte d'Ivoire, Democratic Republic of the Congo, Djibouti, Gabon, Guinea, Madagascar, Mali, Niger, Rwanda, Senegal, Togo.

* Europe: Belgium (alongside Dutch and German), France, Luxembourg (alongside German), Monaco, Switzerland (alongside German, Italian, and Romansh).

* North America: Canada (alongside English)

* Caribbean: Haiti

It's important to note that while French is the official language in these countries, there may be other languages spoken as well. For example, in Canada, English is also an official language and is spoken by a significant portion of the population.