hazu and past tense (WAS supposed to)

[denkou]

Hello again!

I know "hazu" can mean "ought to", "should be" or "supposed to" when added to a base 3 verb. I'm wondering how you say someone WAS supposed to do something. In other words, hazu in the past tense. I think hazu can be used with some conjugated verbs like ikitai. Can they be used with past tense? "ikimashita hazu"? "itta hazu"? Can these work? If not, how do I go about doing it?

Here's an example sentence:

Last week, a friend of mine was supposed to go to Egypt by plane.
(FYI: In the end he couldn't as the flight was cancelled.)

先週, 私の知人は飛行機でエジプトに行きましたはず.

This sentence really doesn't feel right to me. I'm sure I've got it wrong in at least a couple of places. :sorry: I've placed the 飛行機で before the エジプトに because of the fact that he is going by plane is more important than where it is he is going (although I think the sentence would still make sense the other way round).

I'd love some corrections and advice to help me learn, especially regarding using hazu properly. :?

 

[Toritoribe]

It should be 先週、私の知人は飛行機でエジプトに行くはずだった. はず can't be used with polite forms. Plus, エジプトに行ったはず（だ）means "should have gone to Egypt."

 

[denkou]

As usual, it seems very obvious once you've shown me!

Thank you very much. I really appreciate it.