This is the 10771st most frequent French word.
never
The French word for "never" is "jamais."
Here, 'jamais' is used with 'ne' as a negation to indicate that the action of forgetting will not occur at any time.
Je ne vais jamais oublier ce jour.
I will never forget this day.
In this sentence, 'jamais' is used for emphasis at the beginning, indicating a strong negation of the possibility.
Jamais je n'aurais pensé que cela arriverait.
Never would I have thought that this would happen.
Here, 'jamais' adds nuance by pairing with 'presque', meaning 'almost never', to downplay the frequency of occurrence.