Best/Worst/Greatest. The GOP prez wannabe uses words like that all the time as he accuses others or praises himself/those he likes. Doesn't he know those words refer to one,not many?

Those whom he dislikes are the "worst" and there are multiples of them but when he refers to himself or his projects or folks he likes it is always "best/greatest". The guy doesn't understand the language he speaks. He isn't articulate and he cannot articulate his thoughts in a way that makes any sense at all. Why?