Student or Learner
In this webpage English Grammar - Adverbs - Position in a Sentence - Word Power, they say:
And then they use the adverb "usually" before "do not":In negative statements, and negative questions with not, adverbs in the middle position of a clause usually follow the word not.
e.g. Negative Statement: They do not often miss the bus.
I'm confused.It should be noted that the adverbs daily, weekly, monthly, yearly and annually usually do not occupy the middle position of a clause.
1. do not often / do not usually
2. often do not / usually do not
Are 1 and 2 both OK?
Or is it that "do not usually" and "usually do not" have different meanings?