Let’s cut to the chase. Bien sûr is how you say of course in French. Translated literally as “very sure”, bien sûr is quite versatile because just like “of course” is used in English bien sûr can be used in all sorts of situations both formal and informal.
In French you cannot say “French class”. Your class is not French itself: it’s a class about the French language. “French class” is an idiom in English. So translating word by word and saying: “une classe française” is a mistake.
'of course' in Other Languages. British English: of course ADVERB. You say of course to suggest that something is normal, obvious, or well-known, and should therefore not surprise the person you are talking to. Of course there were lots of other interesting things at the exhibition. American English: of course.
On a side note, people have been pointing out that it should be “je suis un cours de français”, the class being the people, the course the content. It may be a mistake, but it’s very common in French to say “une classe de français” for both people and content.
Due to the lack of case marking in its nouns, French compensates by using a wide array of prepositions and a more rigid word order. French follows a SVO order (subject - verb - object), with the exception being weak object pronouns — these come directly behind the verb.
French nominals have two genders (masculine and feminine ) and can inflect to indicate two numbers (singular and plural). Any pronoun, article, determiner, and/or adjective that accompanies a noun must always agree with it, in both gender and number.
Round 2 — Verbs. French verbs are pretty standard for a Romance language. They agree withe person and number and can inflect to indicate three tenses (present, past, and future), two aspects (in the past tense), and up to three moods (indicative, subjunctive, and imperative).
French probably the richest vowel inventory of all major Romance languages. with an impressive 17 vowels in Standard French (13 oral vowels and 4 nasal vowels). When it comes to consonants, however, French is roughly around the average of European languages, and it does not really have many unusual sounds.
Spain is much, much more interesting to explore than France. It is of course, just a personal opinion and by zero means objective. France for me is a very unidimensional country with a uniform culture across nearly all of its regions, cities. Spain on the other hand, is breathtakingly exotic.
“La langue” being feminine, the adjective “française” is also in the feminine.
In French you cannot say “French class”. Your class is not French itself: it’s a class about the French language. “French class” is an idiom in English. So translating word by word and saying: “une classe française” is a mistake.