A.T. Robertson Commentary John 15:18

"If the world hateth you, ye know that it hath hated me before [it hated] you." — John 15:18 (ASV)

If the world hateth you (ε ο κοσμος υμας μισε). Condition of the first class. As it certainly does.

Ye know (γινωσκετε). Present active second person plural indicative of γινωσκω or present active imperative (know), same form.

Hath hated (μεμισηκεν). Perfect active indicative, "has hated and still hates."

Before it hateth you (πρωτον υμων). Ablative case υμων after the superlative πρωτον as with πρωτος μου in 1:15.