Password Recovery - base-word attack
Base-word attack (developed by Passcape) is pretty much similar to the mask recovery. However, you don't have to set up the mask syntax here; simply enter the keyword, which supposedly was the base word for the password. It is an irreplaceable recovery tool when you know a portion of the password or its main part. Normally, such cases dispose to using mask recovery; however, it does not always allow coping with the task set forth. Suppose our password was 'S10wDr1v3r'. Trying to guess such a complicated password using mask recovery would be an ungrateful job, even if you are quite sure that it is based upon the 'slowdriver' word. These are the cases when the base-word attack will rescue you.

With this tool, the program will attempt to guess the original password, trying all possible combinations founded upon 15 groups of rules (total over 150 rules.) If you type 'slowdriver' in the field, you will see that the program has generated thousands of different combinations upon this phrase, and one of those combinations could match our password.
You can also generate a wordlist on those mutations and save it on a disk.
Note, if your password length exceeds 15-16 characters, it may take quite some time to prepare (mutate) the password for the recovery.