Fun, my friend.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern ---F--FFS. That is, nine letter words with 4th letter F and 7th letter F and 8th letter F and 9th letter S. In alphabetical order, they are: bumfluffs niffnaffs riffraffs
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern C--F-F---. That is, nine letter words with 1st letter C and 4th letter F and 6th letter F. In alphabetical order, they are: carfuffle cuffuffle curfuffle
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern F---F-C--. That is, nine letter words with 1st letter F and 5th letter F and 7th letter C. In alphabetical order, they are: fairfaced forefaces fullfaces
A nine letter word using those letters is foresight.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern ---IFF---. That is, nine letter words with 4th letter I and 5th letter F and 6th letter F. In alphabetical order, they are: squiffers squiffier tariffing
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --FF---G-. That is, nine letter words with 3rd letter F and 4th letter F and 8th letter G. In alphabetical order, they are: mafflings rufflings wafflings
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern C------FF. That is, nine letter words with 1st letter C and 8th letter F and 9th letter F. In alphabetical order, they are: cowlstaff creampuff crossruff
off,
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --AN--F--. That is, nine letter words with 3rd letter A and 4th letter N and 7th letter F. In alphabetical order, they are: chanceful changeful standoffs
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern -A--R--F-. That is, nine letter words with 2nd letter A and 5th letter R and 8th letter F. In alphabetical order, they are: dandriffs dandruffs dandruffy
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern F-----AW-. That is, nine letter words with 1st letter F and 7th letter A and 8th letter W. In alphabetical order, they are: fernshaws foofaraws frogspawn
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern ---A-F-R-. That is, nine letter words with 4th letter A and 6th letter F and 8th letter R. In alphabetical order, they are: disaffirm pedalfers sclaffers