Viewpoint and Commenting Adverbs

The function of viewpoint and commenting adverbs

Adverbs can be used for commentary purposes. They expose the perspective of the speaker.

The position of viewpoint and commenting adverbs

The position of these particular adverbs can vary. Usually, they are placed at the beginning of a sentence, but the syntax can be flexible and can sometimes vary the tone. 

Examples:

• Clearly, it doesn’t matter to you.
  It clearly doesn’t matter to you.
  It doesn’t matter to you, clearly. 
• Personally, I prefer to have some background music whilst working.
  I personally prefer to have some background music whilst working.
  I prefer to have some background music whilst working, personally.