Final answer:
Phrasal verbs, typically composed of a one-syllable verb followed by a preposition, convey unique meanings beyond their individual component words. It's vital to make sure verb agreement according to context in sentence construction.
Step-by-step explanation:
Phrasal verbs are usually made up of a one-syllable verb followed by a preposition. For instance, the word 'run' is a single syllable verb and in the phrasal verb 'run out', 'out' is a preposition. However, the semantic meaning of 'run out' is entirely different from 'run'. Therefore, in English language, certain combinations of verbs and prepositions give rise to completely new meanings, creating phrasal verbs. Note that in sentence construction, you must ensure the context fits the singular or plural verb and they must agree.
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