There are 17 words that start with 'befo'.
| befog | befogs | befool | 
| before | befoul | befools | 
| befouls | befogged | befooled | 
| befouled | befouler | befogging | 
| befooling | befoulers | befouling | 
| beforehand | beforetime | |
Note: These 17 words that start with 'befo' are found from the USA & Canada version of the tournament Scrabble word list.