-ing vs to + verb

Knowing whether to use the -ing form or the infinitive (to + verb) depends mainly on the verb that comes before it. Some verbs are followed by the -ing form, such as “enjoy,” “avoid,” and “finish” (e.g., “I enjoy reading”). Other verbs are followed by the infinitive, such as “want,” “hope,” and “decide” (e.g., “I want to travel”). A few verbs can take both forms, sometimes with little or no change in meaning, such as “like” and “love” (e.g., “I like swimming” and “I like to swim”). Because there is no single rule that works for every verb, the best approach is to learn which pattern each verb follows through practice and exposure.

Generally do not use the ing form with an inactive verb.........I see vs I am seeing