PASO 1Elige la opción correcta
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Coward (= one without courage) is the noun. The adjective is cowardly.
After is a preposition and we must use it with an ob|ect. Afterwards, then, after that are adverbs of time and we can use them alone.
As is a conjunction, and is usually followed by a noun or pronoun in the nominative case. Like isn't a conjunction, but an adjective which behaves like a preposition being followed by a noun or pronoun in the objective case.
Afraid isn't a verb but an adjective, and we generally use it with the verb to be.