Here is a brief review of gerunds and how to form them.
ex: walking, talking, thinking, listening
ex: think + ing = thinking
There are a few spelling rules that you need to know in order to form gerunds correctly. The spelling of a gerund depends on the vowels (a, e, i, o, u) and consonants (b, c, d, f, etc.) at the end of the verb.
|If there is more than one consonant, just add ING||think + ing = thinking|
|If there is more than one vowel, just add ING||beat + ing = beating|
|If there is one vowel and one consonant, and the syllable is stressed, double the consonant and add ING||hit + t + ing = hitting|
|If there are one or more consonants and E, remove the E and add ING||take + ing = taking|
|In most other cases, just add ING|| study + ing = studying|
see + ing = seeing