We can often tell if you mean "I would" or "I had" just by looking at the context of the sentence however if we are not sure we should look at the grammatical form that follows the abbreviations.
I'd abbreviation for would or had
6 points explaining the abbreviation I'd for would or had:
1. The word "I’d" is an abbreviation of "I had" or "I would". Here are some examples:
- You’d = you would or you had
- He’d = he would or he had
- She’d = she would or she had
- It’d = it would or it had
- We’d = we would or we had
- They’d = they would or they had
2. The word "Would" come without infinitive without "To". Examples:
- I'd like some tea. ('d = would)
- He'd go if he had some money. ('d = would)
- It'd be a good idea. ('d = would)
3. "Would" also followed by the perfect infinitive "Have + past participle". Examples:
- I'd have gone if I had had time. ('d = would)
- He'd have been 70 today. ('d = would)
4. "Had" is followed by the past participle, as in the examples:
- He'd gone home. ('d = had)
- He'd been married a year. ('d = had)
- She'd just spoken to her. ('d = had)
- I wish I'd waited longer. ('d = had)
5. "Had" used to give advice or warnings, as in the examples:
- You'dbetter be careful – it might be dangerous. ('d = had)
- We'dbetter ask someone else because I'm not sure. ('d = had)
6. "Would" is uses with "rather", examples:
- I'drather live in Paris than in Rome. ('d = would)
- I'm tired so I'd rather not go out. ('d = would)