Difficulty: Moderately Easy
Step1
Know that "like" is a preposition and "as if," when properly used, is a conjunction, and never the twain shall meet. That's what Rudyard Kipling said once anyhow.
Step2
Use "like" when an is object involved. For instance: "It looks like snow."
Step3
Use "as if" as a conjunction. Here is an example: "It looks as if it will snow." This part of speech expresses flow and connectivity. It is a joiner.
Step4
Watch for mistakes and mix-ups people have with these words. Here is an example of how to use "like" for "as if" incorrectly: "It looks like it will snow today."
Step5
Understand the correct and distinct uses of these words. Again, "like" is a preposition, and it shows relationship or similar characteristic. Not all prepositions are equal. That is what's nice about English. It's a language that can convey intricate and precise meaning.
Step6
Learn about conjunctions. There are two kinds, coordinating and subordinating. Coordinating conjunctions connect two independent clauses that can stand alone as complete sentences. Subordinating conjunctions connect an independent clause with a dependent clause (a clause that cannot stand alone). "As if" is a subordinating conjunction.