Understanding the subtle distinction between "apply" and "applies" is fundamental for clear and professional communication. While both terms relate to the verb "to apply," their usage depends entirely on the subject of the sentence and its number. Using the correct form ensures your writing demonstrates attention to detail and grammatical competence, whether you are drafting a formal job application, a business proposal, or an academic paper.
The Core Rule: Subject-Verb Agreement
The choice between "apply" and "applies" hinges on whether the subject performing the action is singular or plural. In English grammar, verbs must agree with their subject in number. This means if the subject is a singular noun or a singular pronoun (he, she, it), the verb typically requires an -s or -es ending in the present simple tense. Conversely, if the subject is plural (we, you, they, or multiple nouns), the verb appears in its base form without an -s suffix. Mastering this agreement is the key to determining which version of the word you need.
When to Use "Applies"
You should use "applies" when the subject of the sentence is singular. This includes third-person singular pronouns like "he," "she," "it," or any singular noun that refers to one person, place, thing, or idea. The -s suffix signals that the action is being performed by one entity. This form is common in instructional texts, scientific descriptions, and formal statements where the subject is definitive and singular.

Practical Examples of "Applies"
To solidify the concept, consider how "applies" functions in real-world contexts. This word is frequently encountered in academic descriptions, legal documents, and standard operating procedures. Here are specific examples illustrating its correct usage:
- The new safety regulation applies to all employees in the warehouse.
- This theory applies specifically to chemical reactions at high temperatures.
- Does this discount applies to online orders only?
When to Use "Apply"
Conversely, you must use the base form "apply" when the subject of the sentence is plural. This occurs when you are referring to multiple people, things, or ideas, or when using the pronouns I, you, we, or they. In these cases, the verb does not require an -s suffix because the subject designation already indicates the plural nature of the action. Using "apply" correctly ensures your sentences maintain proper flow and readability.
Practical Examples of "Apply"
Reviewing examples with plural subjects helps distinguish the usage clearly. In these scenarios, the action is distributed across multiple recipients or actors, negating the need for the -s ending. This form is prevalent in collaborative environments, general instructions, and discussions involving groups.

- These benefits apply to full-time and part-time staff members.
- You apply pressure to the wound until help arrives.
- Our company policies apply uniformly to all contractors.
Common Scenarios and Special Cases
While subject-verb agreement is the primary rule, certain scenarios can cause confusion. Phrases like "along with," "as well as," or "in addition to" do not change the number of the subject. The verb agrees with the main subject, which remains singular even if other elements are added to the phrase. Similarly, words like "each" or "every" are singular and require "applies," even if they precede a plural noun.
| Subject Type | Correct Verb | Example Sentence |
|---|---|---|
| Singular (He/She/It) | Applies | The policy applies to visitors. |
| Plural (We/You/They) | Apply | The policies apply to visitors. |
| Singular Noun | Applies | The deadline applies tomorrow. |
| Plural Noun | Apply | The deadlines apply tomorrow. |
By consistently checking the subject of your sentence, you can confidently choose between "apply" and "applies." This simple habit elevates your writing, ensuring it is grammatically sound and professionally polished for any audience.























