I'll call you tonight if ......which one is correct and why

[Cicily21]

Dear All,

Which one is correct and why?

I'll call you tonight if (1) you're convenient.
(2) it's convenient for you.
(3)I am convenient.


Thanks a lot for your kind assistance.

Best Regards,
Cicily from Taiwan

[Francois]

2) is ok.
As a rule persons are not convenient.

FRC

[Cicily21]

Originally Posted by Francois

2) is ok.
As a rule persons are not convenient.

FRC

Thanks ...I got it....that "person" cannot be convenient for someone else, right??

Thanks a lot!!

Best Regards,
Cicily

[Francois]

You're welcome.

FRC