The word bupbot (prepositions) are always followed by a noun (a Noun, Pronoun, Gerund, etc.).Every verb behind a bupbot is the verb gerund คีอ ing, which I thought was filled (filled ing verb gerund is acting as a noun.)
Prepositions (prepositions) is followed by a noun always (Noun, Pronoun, Gerund, etc) verbs all that is behind a preposition is a verb add ing that Kee gerund itself (gerund is a verb that fills ing act is. noun)
Prepositions (prepositions) is followed by a noun (Noun always,,, Pronoun Gerund etc) verbs all behind the preposition is the verb fill ing. Which I gerund itself (gerund is verb fill ing serves as a noun).