A common mistake is that people tend to use the term “as well as” when they mean “as well” because they do not understand (or don’t care) which item is primary and which is secondary.
Test yourself: The following two sentences have different meanings based on the term used. Among the three fruits listed, which was the first thought and which was the last?
1. I bought apples and pears, as well as bananas.
In this sentence the bananas are primary because the apples and pears were an afterthought.
2. I bought apples and pears, and bananas as well.
In this sentence, the bananas were the afterthought.