Understanding "Should" in English
"Should" is a modal auxiliary verb primarily used to express obligation, advice, expectation, or recommendation. Because it is a modal verb, it is followed directly by the base form of a verb (without "to") and does not change form for different subjects (e.g., he should go, not he shoulds go).
Here are its core functions:
- Giving Advice or Recommendations: Suggesting what is the right or best thing to do.
- Expressing Expectation or Probability: Saying what we reasonably expect to happen.
- Expressing Obligation or Duty: Stating a moral or social responsibility (weaker than must).
- Hypothetical Scenarios: Used in conditional clauses (often with if).
10 Sample Sentences
- Advice / Recommendation:You should wear a warm jacket if you are going hiking in the mountains today.
- Expectation / Probability:The train should arrive at the station in about ten minutes.
- Obligation / Duty:We should respect our elders and listen to their valuable life experiences.
- Asking for Advice (Interrogative):Should I submit this digital report before the end of the day?
- Negative Advice (Prohibition):You should not eat too many sweets if you want to maintain good health.
- Hypothetical Condition:If you should encounter any technical issues with the application, please let me know immediately.
- Desire or Suggestion (with "Why"):Why should we worry about things that are completely out of our control?
- Past Regret / Criticism (should have + past participle):I should have checked the weather forecast before planning the outdoor event.
- Logical Deduction:She has studied Chinese vocabulary every single day, so she should pass the exam easily.
- Polite Formal Expression:I should think that honesty is always the best policy in any situation.
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