Bonjour !
Answer:
The one place you cannot have an adverb in French is after the "subject".
A. subject
Exemple :
Je mange rarement au restaurant.
je = sujet
mange = verbe
rarement : adverb
In French, you can never place the adverb after the subject.
(I rarely eat in a restaurant.) = In English, adverbs are sometimes placed right after the subject of the verb.