We use should to talk about obligation, duty and similar ideas. It is less strong as must.Some Examples:
1. Everybody should eat dinner.
2. You shouldn’t tell her bad stories.
3. Letters should be sent before October 30th.
- In this situation, should is more polite that saying “Applications must be sent…
|4. Should I go and see a doctor, what do you think?|
5. What should I do?
- Should is used to ask for advice and instructions, in questions. Like a less definite form of shall.
We can used should to say that we know something is probable. (because it is logical or normal in the circumstances.)Some Examples:
1. She is out, but she should be back later.
2. Jan should get her soon.
3. We are taking a trip to Disneyland. That should be wonderful.
In the past indirect speech, should is used unchanged if should was used in direct speech.Some Examples:
1. I thought “I should talk to Jane” – I knew that I should talk to Jane.
- In other cases, should + infinitive is not normally used to talk about the past. We can use for examples was/were supposed to…
2. I was going to be a long day. I was supposed to do all my homework and help in the household chores.
3. She was supposed to be present, but she wasn’t.