英语第1到第20怎样写？

one,twe,three,four,five,six,seven,eight,nine,ten,elven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty

first, second, third, fourth, fifth, sixth, seventh, eithth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth