誕生パーティーに行けたらいいのに vs 誕生パーティーに行ったらいいのに


> 誕生パーティーに行けたらいいのに

vs

> 誕生パーティーに行ったらいいのに

Is explained as

>   1. I wish I could go to the party.
>
>   2. I wish someone would go to the birthday party / You should go to the
> party. (suggestion to other people.)
>
>

I'm having a hard time grasping why the second one couldn't also be `if i went
to the party it would be good`?

I can't seem to figure it out...

Any help would be appreciated!

P.S

I've seen these sentences:

JLPTの１級に受かったらいいのに。 I wish I could pass JLPT Level 1.

明日、お天気だったらいいね Hope the weather is nice tomorrow.

But they are still using the たらいい, which furthers my confusion




たら has three meangs. One is "if". For example, 誕生パーティーに行けたらいいのに means "If I
could go the party, it would be good". that is "I wish I could go to the
party"

Another is "when ～, and then". For example, 昨日、学校から帰ったら、家に親戚のおじさんが来ていた(When I
came home from school yesterday, my uncle stayed at my house.).

The other is "Why don't you do something?". For example, 英会話の学校に行ったら(Why don't
you go to an English school?). たら in 誕生パーティーに行ったらいいのに is this usage.

