Remember this!
The present tense form of 'warn' is warn or warns. Example: He warns his children about the dangers of playing with fire. (He warns his children about the dangers of playing with fire.)
Definition of “warn”
- to notify someone of a possible danger or problem
- to caution or advise against something
Tense sentence structure and examples:
Notes from a Native English Speaker
Here are the general structures of a present and past participle. Remember, some verbs have an irregular form and may not follow this structure: Present Participle: [Verb] -ing Past Participle: [Verb] -ed
| Present Simple | warn |
| Present Continuous | warning |
| Present Perfect | warned |
Example
She warns her colleagues about the upcoming deadline.
Example
They warn their customers about the potential risks.
Example
I am warning you to be careful.
Example
They are warning the public about the dangers of smoking.
Example
She has warned them about the consequences.
Example
They have warned everyone about the potential dangers.
warn Subject-Verb Agreement
Notes from a Native English Speaker
Subject-verb agreement means that a subject and its verb match. They’re either both plural or both singular. A singular subject takes a singular verb. - Example: The cat is sleeping. A plural subject takes a plural verb. - Example: The cats are sleeping.
| Singular First Person (I) | warn |
| Singular Second Person (You) | warn |
| Singular Third Person (He/She/It) | warns |
| Plural (We/You/They) | warn |
Example
I warn my friends about the potential dangers.
Example
You warn your family about the possible risks.
Example
He warns his colleagues about the upcoming changes.
Example
She warns her children about the consequences.
Example
It warns people about the potential hazards.
Example
We warn our neighbors about the safety precautions.
Example
You warn your classmates about the test.
Example
They warn their employees about the company policies.
