First off, I would like to apologise if this has been asked before - I did do a search on here, but there were far too many results to go through!
Take for example this sentence:
Like you, I also have to [do sth.]
I don't think it's an uncommon verbal construction, but, grammatically, is it acceptable?
1) Is the "also" superfluous; does it have the same function as "like" in the above example?
2) If it is superfluous, does it necessarily mean the sentence is grammatically incorrect? And does its acceptability differ in speech as compared to writing?