Emphasizing with pseudo-cleft sentences
Sometimes you want to draw special attention to a particular part of a sentence. Instead of just saying "This new comedian is hilarious," you might want to say "What is hilarious is this new comedian."
In French, we use the structures ce qui... c'est... and ce que... c'est... to put a spotlight on specific information.
Using "ce qui" as the subject
When "what" acts as the subject in the first part of the sentence (the person or thing doing the action, or being described), use ce qui.
| What is really hilarious is this new comedian. | Ce qui est vraiment hilarant, c'est ce nouvel humoriste. |
| What bothers me is every vulgar joke. | Ce qui me dérange, c'est chaque blague vulgaire. |
Notice how ce qui is followed directly by a verb (or an object pronoun). The second half of the sentence always begins with c'est (it is), which introduces the thing you are emphasizing.
Using "ce que" as the direct object
When "what" acts as the direct object in the first part of the sentence (the thing receiving the action), use ce que. It is typically followed by a new subject (like je, tu, nous, etc.).
| What I did not like is this comedian's sketch. | Ce que je n'ai pas aimé, c'est le sketch de cet humoriste. |
| What we heard is a hilarious joke. | Ce que nous avons entendu, c'est une blague hilarante. |
Remember that ce que drops its e and becomes ce qu' if the word immediately following it begins with a vowel or a mute h.
Putting it all together
You can use these structures to contrast different elements, highlight what caused an awkward silence, or express strong preferences during a critique. The formula is always: ce qui / ce que + [first part of the sentence], c'est + [the emphasized element].
| What I hate is vulgar sarcasm. | Ce que je déteste, c'est le sarcasme vulgaire. |
| On the other hand, what is funny is subtle sarcasm. | Par contre, ce qui est amusant, c'est le sarcasme subtil. |