Cleft Sentences And Examples Of The Most Common Uses – by Derek Haines…
on Just Publishing Advice:
Cleft sentences use a two clause construction and usually start with the empty introductory subjects of what or it.
Cleft is an adjective that means to split or divide something into two parts.
But in grammar, we use this division to add emphasis to the first clause in a sentence. There are many different cleft constructions in English, but the most common are it-clefts and wh-clefts.