thanks for your reply. Even if we got married now, we can't have 2 years of marriage. so probably il be on conditional status when my partner gets US citizenship and apply me for green card.

By the way, if we get married now, wile she's still in GC status, you said my partner can apply I-130, but this could take 4-5 years right? but as per Lynne Rogers Feldman's response above, they are processing almost current?

Depending on when your wife can apply for naturalization, you may be married for 2 years by the time you get your green card. Remember that it will take 4-5 months after filing until she becomes a USC, and then it may be another 4-5 months until you have your I-485 interview. The age of your marriage on the date your I-485 is approved is the point of measure.

Ms. Feldman's response was that F2A I-130s were almost current last year. But they're not close to current right now. If you are married and your wife files the I-130 in the F2A category, this I-130 will automatically convert to an Immediate Relative filing the day that she becomes a USC.