Grammar: Articles and determiners

Order of Determiners

English grammar follows a fairly strict "pecking order" when multiple determiners are used before a noun. If you mix them up, a sentence immediately starts to sound "off" to a native speaker.
Here is the blueprint for how to layer them correctly.
The Hierarchy of Determiners
Generally, we group determiners into three categories based on their position: Pre-determiners, Central determiners, and Post-determiners.
1. Pre-determiners
These come first and usually limit the noun in terms of quantity or intensity.
Multipliers: double, twice, three times
Fractions: half, one-third
Words of intensity/universality: all, both, such, what (as in "What a day!")
2. Central Determiners
This is the "core" of the noun phrase. You usually cannot use two of these together (e.g., you can't say "the my house").
Articles: a, an, the
Possessives: my, your, his, her, its, our, their, John's
Demonstratives: this, that, these, those
Quantifiers: some, any, no, every, each, either, neither, enough
3. Post-determiners
These come after the central determiner and provide specific numerical or ordering information.
Cardinals (Numbers): one, two, three, ten
Ordinals: first, second, third, last, next
General Ordinals: other, another, further
The Standard Sequence Table
When you combine them, they follow this specific flow:
Pre-determinerCentral DeterminerPost-determinerNoun
Allthemanymistakes
Halfmyfirstsalary
Twicethatamount
Suchamess
Thelastthree
Important Rules to Remember
The Mutual Exclusivity Rule: You almost never put two Central Determiners together.
Incorrect: "The my car."
Correct: "My car" or "That car of mine."
Ordinals before Cardinals: If you have both a "number" and an "order" word, the order word comes first.
Correct: "The first three contestants."
Incorrect: "The three first contestants."
The "Of" Connection: Many pre-determiners (all, both, half) can be used with "of," especially before a central determiner.
"All of my friends" or "All my friends" are both grammatically fine.
Pro-Tip: If you’re ever unsure, remember that articles (a, an, the) and possessives (my, your) are the "anchors." Almost everything else is either a prefix or a suffix to them.