When 'all' refers to a group of people/things as a unified whole, it comes with a singular verb, but when 'all' refers to multiple groups. See examples of all used in a sentence. When 'all' is a pronoun, it can come with both singular and plural nouns.
Ben 10 All Aliens! by NickyWindu on DeviantArt
The governor mounted a halfhearted campaign for the presidency but didn't. Putting all of one's available resources into an effort: When shakespeare writes, in as you like it, “ all the world's a stage,” he means the whole world.
All is silent on the island now.
The new version is simple and easy to use When you talk about all of one thing, you mean the whole thing. Every one (of), or the complete amount or number (of), or the whole (of): We use all (of) the (with an article), when we're talking about a specific group of the noun.
The meaning of all is the whole amount, quantity, or extent of. The whole of (used in referring to quantity, extent, or duration). How to use all in a sentence. Games staking all of one's chips, as in poker.
As you'll have read in our news pages, all has not been well of late.
When we say all (of) the students, we're talking about a specific group of students. You use all to refer to a situation or to life in general.