Sometimes in formal French, you will spot a ne floating in a sentence without its negative partner pas. This is called the ne explétif. It is entirely untranslatable and does not actually negate the sentence. Instead, it acts as a stylistic marker that adds a subtle tone of caution, doubt, or anticipation.
Verbs of Fear
When you express fear that something might happen using verbs like craindre (to fear) or redouter (to dread), French often inserts a ne explétif in the following subordinate que clause. Because you are expressing an emotion, the verb in that clause must also be in the subjunctive mood.
| The bodyguard fears that the attacker might strike. | Le garde du corps craint que l'agresseur ne frappe. |
| The escort dreads that the crowd might be violent. | L'escorte redoute que la foule ne soit violente. |
Verbs of Prevention
The ne explétif is also highly common after verbs of prevention, such as empêcher (to prevent). The logic is similar: you are taking action to ward off a threatening or unwanted outcome.
| The bodyguards prevent the crowd from surrounding the president. | Les gardes du corps empêchent que la foule n'entoure le président. |
Just like the negative ne, the ne explétif contracts to n' when the following verb begins with a vowel or mute h.
| We must prevent the shooter from using his rifle. | Nous devons empêcher que le tireur n'utilise son fusil. |
Spotting the Difference
The crucial rule to remember is that the ne explétif appears without pas. If you were to add pas, the sentence would become genuinely negative (e.g., fearing that the shooter won't flee). When ne or n' stands alone in the que clause after verbs of fear and prevention, it's simply the expletive at work.
| They dread that the shooter might flee. | Ils redoutent que le tireur ne fuie. |