Re: sentence structure
Hello, and welcome to the forums.
Before I answer your questions, please do note that we expect people to use their best attempt at English. Not capitalizing words like "Hello" and "i" (when it's clear you have the knowledge to do so), and using fake words like "wanna" will limit the people who answer your questions.
You'll get the hang of it soon.
You have an inverted form with "gone are the days." Sometimes people use it artistically and sometimes there are just some set phrases where we're used to seeing it that way. There is no difference between saying "Gone are they days when you could pretend you tried to called - Caller ID will make a liar out of you" and "The days are gone when you can pretend you tried to call..."
Inversions are sometimes necessary (when you start with something negative) but in your example, it's just used because the person liked the way it read that way.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.