Correct:
Shape sleeve top
Work 4[4:4:7:7] rows dec 1 st at each end of every
row. 41[47:51:51:57] sts.
Work 0[0:0:1:1] rows more without shaping.
Cast off 8[9:10:10:11] sts in patt at beg of next
2[2:2:4:4] rows. 25[29:31:31:35] sts.
Cast off 8[9:10:10:11] sts in patt at beg of next 2 rows.
9[11:11:11:13] sts.
Cast off rem 9[11:11:11:13] sts in patt.