Subject – verb agreement - English Grammar
https://www.englishgrammar.org/subject-verb-agreement27.03.2012 · Subject – verb agreement. March 27, 2012 -. When a singular noun or pronoun is connected with another noun or pronoun by using words like with, as well as, besides, together with, no less than and other similar expressions, the verb is singular. The shop, with its articles, was burnt down. (NOT The shop, with its articles, were burnt down.)