5 letter words:
inapt7,
input7,
paint7,
patin7,
pinta7,
unapt7,
4 letter words:
nipa6,
pain6,
pant6,
pian6,
pina6,
pint6,
pita6,
ptui6,
puna6,
punt6,
anti4,
aunt4,
tain4,
tuna4,
unai4,
unit4,
3 letter words:
apt5,
nap5,
nip5,
pan5,
pat5,
pia5,
pin5,
pit5,
piu5,
pun5,
put5,
tap5,
tip5,
tup5,
ain3,
ait3,
ani3,
ant3,
nit3,
nut3,
tan3,
tau3,
tin3,
tui3,
tun3,
uta3,
2 letter words:
pa4,
pi4,
up4,
ai2,
an2,
at2,
in2,
it2,
na2,
nu2,
ta2,
ti2,
un2,
ut2,