Ne ... pas assez (de) = Not enough (of)

Hi Fahad,

Your sentence syntax is incorrect as it should be -

Je n'ai pas assez mangé du gâteau

but I would probably have said -

Je n'ai pas assez mangé de ce gâteau 

Hi Arndís,

If you mean in the sentence :

Je n'ai pas assez de lait.

it is because of the 'pas' . (always pas ...de )

Hope this helps!

Whenever you relate to a specific quantity, you don't use the article and du/de la/des turns into de. And not having something, i.e., having zero of it, is also a specific quantity. Hence in negations you just use de.

J'ai du lait. -- I have milk. (no specific quantity, hence du)
J'ai un peu de lait. -- I have a bit of milk. (un peu is a specification of quantity, hence de).
Je n'ai pas de lait. -- I don't have milk. (no milk is also considered a quantity, hence de).

-- Chris (not a native speaker).

Thank you, this is very helpful. 

Bonjour Adrienne, First, a quick note about terminology: "elide" means to get rid of (as in je + ai = j'ai, the e is elided). But what you're asking about is liaisons: should there be a liaison between pas and assez? And the answer is that this type of liaison is optional: you can pronounce it for more formal French, or not pronounce it for less formal French. See my lesson on liaisons for more info.

This is the dated computer generated voice text to speech voice from Google Translate, which still remains for a few audios. I'd put it down more to something which would have a liaison in standard French but is dropped in more familiar colloquial settings.

I would expect Google to give standard pronunciation rather than casual, so I expect this may have been a glitch at the time.