Grammar fix
not to mention
additionally emphasising
Used to introduce extra information that makes your point even stronger, often highlighting something important or impressive in addition to what was just said.
Hear it in context
Notice where the phrase sounds natural.
- The new job offers a great salary, not to mention flexible working hours.daily life
- There are many benefits to studying abroad, such as improving language skills, not to mention gaining a deeper understanding of different cultures.IELTS speaking
Fix the pattern
Pattern: [main point], not to mention [additional point]
WrongThe trip was long, not mention expensive.
RightThe trip was long, not to mention expensive.
Fixed phrase 'not TO mention' — don't drop 'to'.
Pattern[main point], not to mention [additional point]
Use it right
Choose the version that sounds natural in speech.
The chunk adds a clinching point with punch; 'in addition to the aforementioned' is heavy.
Build natural chunks
Words that usually travel with it.
not to mentionnot to mention thenot to mention that, not to mention
Don't confuse it
'Not to mention' adds extra emphasis, while 'let alone' is used to highlight something even less likely or more extreme.