The differences among 'too either as well also still'

The differences among 'too' 'either' 'as well' 'also' 'still' 'likewise'
I feel ambiguous about these words, How can I distinguish the differences of them?
Thanks in advance.

[MikeNewYork]

Originally Posted by claude

The differences among 'too' 'either' 'as well' 'also' 'still' 'likewise'
I feel ambiguous about these words, How can I distinguish the differences of them?
Thanks in advance.

That's a pretty broad question. Have you started with looking each of them up in a dictionary and looking at the many uses?