Which is the most appropriate?

[Shinya Maki]

Hello, everyone.

The passage below is a translation from Japanese.

I just heard the group called Super Harmony will give a concert in Tokyo. I quickly e-mailed two friends to see if they ( ) with me. We must hurry because that group is very popular and the tickets will be sold out soon.

Is each of the four below possible in the blank above?
1. can go
2. could go
3. can come
4. could come

Thanks in advance.

Best regards,
Shinya Maki

[Pete]

Hello, everyone.

The passage below is a translation from Japanese.

I just heard the group called Super Harmony will give a concert in Tokyo. I quickly e-mailed two friends to see if they ( ) with me. We must hurry because that group is very popular and the tickets will be sold out soon.

Is each of the four below possible in the blank above?
1. can go
2. could go
3. can come
4. could come

Thanks in advance.

Best regards,
Shinya Maki
>Is each of the four below possible in the blank above?
1. can go [OK, since the concert has not taken place yet. "To go to a concert" means "to attend the concert".]
2. could go [OK, since this is the traditional form for indirect (reported) speech.]
3. can come [OK only if you e-mailed someone away from Tokyo and they must travel (come) to Tokyo to attend the concert.]
4. could come [Same as #3.]