Verb – a word used to describe an action, state, or occurrence, and forming the main part of the predicate of a sentence, such as hear, become, happen.
Adverb – a word or phrase that modifies the meaning of an adjective, verb, or other adverb, expressing manner, place, time, or degree (e.g. here, now, very)
Preposition –a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in ‘the man on the platform’, ‘she arrived after dinner’, ‘what did you do it for?
Words that are sometimes prepositions can act as adverbs. Prepositional verbs don’t change their meaning as much when you add that preposition, and they’re much more rigid when it comes to word order.
What is the difference between an adverb and preposition why this distinction is important.
An object can go before or after an adverb – but it can only go after a preposition. So
Phrasal Verbs can be separated
Prepositional Verbs must not be separated
What do Phrasal and Prepositional Verbs have in common and what are the differences?
A phrasal verb is made up of a verb + adverb. Example: “throw away” OR a verb + adverb + preposition. Example: “put up with”.
Also, when using a phrasal verb, the object (noun) can either be between the verb and adverb or after the adverb:
A prepositional verb is made up of a verb + preposition. The verb must sit directly in front of the preposition and the object (noun or pronoun) must sit directly after the preposition.