Do not use a hyphen with adverbs ending in ly when they precede another modifier.
As shown in the following example, use a hyphen with commonly-used. In this phrase, used is not a modifier.
Preferred |
Discouraged |
This section describes commonly-used commands. |
This section describes commonly used commands. |
The network uses fully encrypted data. |
The network uses fully-encrypted data. |
The information is based on a highly regarded study. |
This information is based on a highly-regarded study. |