A simple sentence is built from the minimum of a subject and a main verb. It can be very short in length (but doesn't have to be): 'The angry dog barks.' It puts across one simple idea: 'Rebecca sang.
The way in which you put sentences together really changes the meaning and how clear and good your writing or speaking is.
Figure 1: Timing of syntactic processing following different strategies. The colored circles refer to the nodes of the syntactic structure that are built at the time point the word in the same color ...