Hi,This one should be pretty easy for natives:
A along with B guarantee(s) the best results.
Is the phrase "A along with B" plural or singular?
I would go for "plural" but I just want to be sure.
You wouldn't say this. You'd say, "Bob and Ray go fishing every week." Or possibly, "Bob goes along with Ray on his weekly fishing trips."A along with B go fishing every other week. They love it.