More on conjunctions Conjunctions form an important part of the new primary curriculum and we have just published two excellent sets suitable for middle primary children. The first looks at because, so and so that; known as conjunctions of cause or reason. These words introduce the reason for an event. e.g. The road was blocked for 5 hours because of the huge car crash. The second set looks at before, while and since, known as conjunctions of time. e.g. James ate three burgers before going on a run across the moors. Go to English Grammar: Conjunctions and Prepositions