adverbs of frequency Adverbs of frequency are placed before the main verb and after the verb to be. Exemple: He often listens to the radio / Tom is usually very friendly. but What happens when is negative? I have found two answers in an answer key exercice that doesn't have sense: the answer key says that both answers are right, but I don't understand why...maybe there is a mistake... It says: Peter doesn't usually get up before seven (before the main verb) Tony usually doesn't get up before seven (before doesn't) It also appears a positive right answer which says: Charlotte goes sometimes to the pool. (after the main verb) Can you help me about this three supposed right answers?????