
It is the past tense of the modal verb 'shall'.
| To Express | Examples |
|---|---|
| Future actions | They should win the match. |
| Past action | I should have completed the work yesterday. |
| Duty or obligation | Children should obey their elders. |
| Advice or recommendations | Everyone should exercise regularly. |
| We should use more renewable energy. | |
| Suggestion | We should leave early to avoid traffic. |
| Probability | The restaurant should open soon. |
| Logical deduction | Tom should be late for the dinner due to the traffic. |
| Prohibition (negative use) | You shouldn't talk to strangers. |