The document discusses preference verbs and their -ing forms in English. It provides examples of how most verbs form the -ing suffix, including exceptions for verbs ending in e, ie, and consonant-vowel-consonant. It then gives examples applying preference verbs like "like", "love", "hate", "prefer", "can't stand", and "don't mind" to activities expressed with -ing verb forms, such as singing, biting, playing, studying, and cooking.