According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 11 words with the pattern -N-AN-. That is, six letter words with 2nd letter N and 4th letter A and 5th letter N. In alphabetical order, they are:
enfant
enrank
incant
infant
ingans
inland
insane
unbans
unhand
unhang
unmans
These will tend to have a vowel as the first letter, or a silent letter.
Anvil
Enjoy
Inure
Known
Onset
Until
ah, end, into, onion, indeed, intends, incubate, annulment, oncologist, involvement, intermediary, encyclopedias
Once, inch, inns, onus/
gnat
Inane
savanna
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -AAI---. That is, seven letter words with 2nd letter A and 3rd letter A and 4th letter I. In alphabetical order, they are: baaings
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -IAA-. That is, five letter words with 2nd letter I and 3rd letter A and 4th letter A. In alphabetical order, they are: kiaat
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -F-I-. That is, five letter words with 2nd letter F and 4th letter I. In alphabetical order, they are: affix afrit
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -I-AI. That is, five letter words with 2nd letter I and 4th letter A and 5th letter I. In alphabetical order, they are: litai pirai
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -A-II. That is, five letter words with 2nd letter A and 4th letter I and 5th letter I. In alphabetical order, they are: aalii radii
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern AI-A---. That is, seven letter words with 1st letter A and 2nd letter I and 4th letter A. In alphabetical order, they are: aidance ailanto
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern -I-A--I. That is, seven letter words with 2nd letter I and 4th letter A and 7th letter I. In alphabetical order, they are: didakai didakei hibachi
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -A-I--A-I. That is, nine letter words with 2nd letter A and 4th letter I and 7th letter A and 9th letter I. In alphabetical order, they are: zamindari
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -A-NI. That is, five letter words with 2nd letter A and 4th letter N and 5th letter I. In alphabetical order, they are: garni
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -EAI-. That is, five letter words with 2nd letter E and 3rd letter A and 4th letter I. In alphabetical order, they are: deair
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -I-AO. That is, five letter words with 2nd letter I and 4th letter A and 5th letter O. In alphabetical order, they are: pilao
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -I-AT. That is, five letter words with 2nd letter I and 4th letter A and 5th letter T. In alphabetical order, they are: kiaat vivat