Can you explain the meaning of the sentence? I would like to understand it grammartically as well. Is 'none' a plural word? How to understand 'the + less(comparative)'? What does 'equally mean' mean?
I'll take the last question first. It is just a different way of writing it. I would probably write 'nonetheless', the word without any space.
The general rule is that if your contracting one sentence with another, the 'however' etc. goes at the beginning.
I wanted to go to the park. However, I couldn't because my dog was ill.
But, a simple reorder can put the 'however' in the middle of the second sentence:
I wanted to go to the park. I couldn't, however, because my dog was ill.
The 'however' in the second sentence still contradicts the first sentence, but you can use it in the middle.
I am very uneasy about calling this an 'adverbial phrase' or '~ chunk'. The reason is that you can't use it in most sentences to improve it. The idea of the chunks is that you can add them almost anywhere to make your sentences better and more natural. They're designed for 'beginners' and 'intermediate' level learners.
Calling this an 'adverbial phrase' means nothing because there's no or very little guidance in that phrase about how to use it. Learners should learn this kind of phrase in the context of what it means rather than try and put it in a grammatical category.
I'll take the last question first. It is just a different way of writing it. I would probably write 'nonetheless', the word without any space.
The general rule is that if your contracting one sentence with another, the 'however' etc. goes at the beginning.
I wanted to go to the park. However, I couldn't because my dog was ill.
But, a simple reorder can put the 'however' in the middle of the second sentence:
I wanted to go to the park. I couldn't, however, because my dog was ill.
The 'however' in the second sentence still contradicts the first sentence, but you can use it in the middle.
I am very uneasy about calling this an 'adverbial phrase' or '~ chunk'. The reason is that you can't use it in most sentences to improve it. The idea of the chunks is that you can add them almost anywhere to make your sentences better and more natural. They're designed for 'beginners' and 'intermediate' level learners.
Calling this an 'adverbial phrase' means nothing because there's no or very little guidance in that phrase about how to use it. Learners should learn this kind of phrase in the context of what it means rather than try and put it in a grammatical category.