ANATOMY

Detailed explanation-1: -If a writer means “all of it, ” she should use “is.” If she means “all of them, ” she should go with “are.” So it depends on whether your contributor was thinking of the whole dish or the various things in it: “All [the soup] is returned to a simmer” or “All [the ingredients] are returned to a simmer.”

Detailed explanation-2: -When deciding whether to use is or are, look at whether the noun is plural or singular. If the noun is singular, use is. If it is plural or there is more than one noun, use are.

Detailed explanation-3: -[M] [T] He made up his mind right away. [M] [T] It is obvious that he is right. [M] [T] It turned out that I was right. [M] [T] She told him that he was right.

Detailed explanation-4: -In order for a sentence to be grammatically correct, the subject and verb must both be singular or plural. In other words, the subject and verb must agree with one another in their tense. If the subject is in plural form, the verb should also be in plur al form (and vice versa).