What is the difference between するはずだった andしたはずだった


I have confusion with the past tense of verb combined with the past tense of
はず したはずだった

From what I understand:

  1. するはず - Supposed to do verb at some point in the future (don't know outcome yet)
  2. したはず - Verb is supposed to happen at some point in the past (don't know whether the verb happened)
  3. するはずだった - Verb was supposed to happen (but it didn't) - am I speaking in the present?
  4. したはずだった - Verb was supposed to happen in the past? (but it didn't)

For example, what are the differences between 3 and 4 in this sentence?

>   1. 彼女は一時までに電話 **するはずだ** - She is supposed to call by 1 o'clock
>
>   2. 彼女は一時までに電話 **したはずだ** - I suppose she called by 1 o'clock
>
>   3. 彼女は一時までに電話 **するはずだった** - She was supposed to call by 1 o'clock
>
>   4. 彼女は一時までに電話 **したはずだった** - She was supposed to have called by 1 o'clock?
>
>

And in this sentence:

> あれ、携帯電話がない！うちを出るとき、カバンに（ **X** ）けど、カバンに入れ忘れたかもしれないね。?

Which is correct (X) and why?

  1. 入れるはずだった
  2. 入れたはずだ
  3. 入れたはずだった




The sentence 3 means "She was supposed to call by 1 o'clock, but she didn't.

The sentence 4 means "She was supposed to have called by 1 o'clock, but we
don't know she actually called by 1 o'clock. She may misunderstand it".

As for your second question, カバンに入れたはずだけど is best.




The sentence 3 means "She was supposed to call by 1 o'clock, but she didn't.

The sentence 4 means "She was supposed to have called by 1 o'clock, but we
don't know she actually called by 1 o'clock. She may misunderstand it".

As for your second question, カバンに入れたはずだけど is best.

