twen_ _
twenty
_i_
six
th_ _teen
thirteen
thr _ _
three
_e_en
seven
n_n_
nine
_e_
ten
f_v_
five
_ _gh_een
eighteen
_ _ _teen
sixteen
_ _ fteen
fifteen
ei _ _ t
eight
_wo
two
_ ou_
four
_e_e_teen
seventeen
e_ _ven
eleven
o_e
one
_i_eteen
nineteen
twel_ _
twelve
f_ _rteen
fourteen