Another classification of adverbs:
Satellite adverbs: they express what you feel and can be placed anywhere:
Hopefully I will be there.
Desinence adverbs:
Adverbs that modify the person and the tense: they are at place where the 'not' should be:
I never ran away.
We both sing.
It has long constituted...
Restrictive adverbs like seldom, only or rarely: if they are placed at the beginning of the sentence, inversion has to be made:
Only when I'm dancing can I feel this free.
ADVERBS OF FREQUENCY