In their efforts to understand the grammar of English as a second language, students often confuse the two roles that grammatical elements play: form and function. A classroom technique for helping students distinguish between the two is to create playful analogies for specific structures, in which students must use reasoning to determine the form appropriate to the intended function of the structure. This is accomplished through a series of questions directed at isolating grammatical elements in a given sentence and clarifying their place within the sentence syntax. (MSE)