Form
FoundationAsk what the word is describing. If it is describing an action, it takes -ly; if it is describing a thing, it does not. Everything else in this deck follows from that one question.
She drives carefully and is a careful driver.
adverb on the verb, adjective on the noun
She drives careful and is a carefully driver.
the two have been exchanged
Where it bites
After a verb, where either could stand. 'He spoke quick' and 'the train runs regular' are both planted forms of this error.