- The guitar is not the same thing as the violin
What if I say this sentence this way:
- The guitar and the violin are not the same thing.
Or should it be:
- The guitar and the violin is not the same thing.
What if I say this sentence this way:
Or should it be:
You have two subjects (plural) so you need to use a plural verb (are in your case).
You can use a singular verb if you refer to two subjects as a union, as a whole or something that represents a single thing. However, you should be careful and use it wisely in terms of logic: