How do you spell "first"?

There are a lot of words, and their spelling is easyto get confused. Quite often there is an irresistible desire to write an adverb, formed from a noun, separately. For example, how do you spell "first"? The adverb "at first" is formed from the noun "beginning". "C" is a prefix and is written together with the word. Correct spelling of the adverb: first. This adverb is used more often with verbs. When it is used in the sense of "before, before, first", it specifies that the action must occur first: "First, do the lessons, and then walk." Being used in the sense of "again, again," means a repeated action: "We'll have to start again."

But this can also be a noun witha pretext. If it is a noun, then with a preposition it is always written separately: "Since the beginning of the novel, the plot has developed rapidly." But the phrase with an adverb: "At first the novel seemed interesting." That is, to understand how to write "first", you need to think about the very meaning of the sentence. And in order to clearly distinguish the noun with the preposition from the adverb, one can try to insert an additional word between "c" and "beginning": "From the very beginning of the novel, the plot developed rapidly." If the statement of an additional word is possible, then you have a noun with a preposition, if not, then you have an adverb.