1.
easy to ~
Attaches to the stem of a verb (masu-stem) to indicate that the action is easy to perform. The resulting word conjugates as an i-adjective.
2.
tend to ~; prone to ~
Indicates a natural tendency or susceptibility toward the action. Often used to describe inherent characteristics of people or things.
Forms
Attaches to the masu-stem (連用形) of verbs:
Conjugation
The resulting word conjugates as an i-adjective: