It would have been a pity/It would be a pity

[navi tasan]

1) Tom is coming home tomorrow. I repaired his computer today. It would have been a pity if he came home tomorrow and found that his computer wasn't in working condition.

2) Tom is coming home tomorrow. I repaired his computer today. It would be a pity if he came home tomorrow and found that his computer wasn't in working condition.

Which is grammatically correct?

If both are incorrect, what would the correct version be?

If one or both are correct, are there any other correct versions (as far as the tenses are concerned)?

 

[jutfrank]

The second.

 

[5jj]

1) Tom is coming home tomorrow. I repaired his computer today. It would have been a pity if he came home tomorrow and found that his computer wasn't in working condition.

That counterfactual conditional is the one.

 

[Annabel Lee]

I'd use a variation on (1), with the past perfect in the "if"-clause:

1a) Tom is coming home tomorrow. I repaired his computer today. It would have been a pity if he had come home tomorrow and found that his computer wasn't in working condition.​

​

The speaker has reason to believe that Tom will not come home tomorrow and find that his computer isn't in working condition: if Tom's computer hadn't been repaired today, Tom would have come home tomorrow and found that his computer wasn't in working condition. The past perfect in the "if"-clause of (1a) represents that future situation as contrary to (believed) fact.