les conjonctions de coordination

Coordinating conjunctions link words, phrases or independent sentences. The most commonly used are mais (but), ou (or), et (and), donc (so, thus), or (so, now, but), ni . . . ni (neither ... nor), car (for), puis (then). These conjunctions conjoin forms of the same grammatical category (adjective + adjective, noun + noun, clause + clause, etc.).

With the exception of or, all of these conjunctions can be used to link adjectives, nouns or verbs within a sentence.

In addition, ou, et, ni , car, mais, donc, and puis are also used to combine two clauses into one:

Ou, or, puis, donc, mais indicate a link between two separate sentences. Or, mais and puis are usually placed at the very beginning of the second sentence. Donc  is usually placed either at the beginning or right after the conjugated verb  of the second sentence.