Romans 9:3
I could wish (huxomhn). Idiomatic imperfect, "I was on the point of wishing." We can see that euxomai (I do wish) would be wrong to say. An huxomhn would mean that he does not wish (conclusion of second class condition). An huxomhn would be conclusion of fourth class condition and too remote. He is shut up to the imperfect indicative (Robertson, Grammar, p. 886).
Anathema (anaqema). See for this word as distinct from anaqhma (offering) I Corinthians 12:3; Galatians 1:8 f.
I myself (autov egw). Nominative with the infinitive einai and agreeing with subject of huxomhn.
According to the flesh (kata sarka). As distinguished from Paul's Christian brethren.
