Here's why:
* Final *e* is often dropped before -ing: This helps maintain the pronunciation of the word. For example, "write" becomes "writing" instead of "writeing".
* The -ing suffix adds a syllable: This makes the word longer and changes the pronunciation, so dropping the *e* often helps create a more natural-sounding word.
Examples:
* Hope -> Hoping
* Move -> Moving
* Take -> Taking
Exceptions:
There are a few exceptions to this rule, usually involving words ending in -ce or -ge. These words generally keep the *e* before -ing to preserve the soft "c" or "g" sound.
* Notice -> Noticing
* Change -> Changing