Final answer:
The Spanish sentence 'No hables con la boca llena' is grammatically correct and translates to 'Don't speak with your mouth full.'
Step-by-step explanation:
The Spanish sentence, 'No hables con la boca llena,' is grammatically correct.
In Spanish, the verb 'hablar' means 'to speak.' The sentence uses the negative command form of the verb, which is 'no hables,' meaning 'don't speak.' 'Con' means 'with' and 'la boca llena' means 'the mouth full.'
Therefore, the sentence translates to 'Don't speak with your mouth full,' which is a common phrase reminding people not to speak while they have food in their mouth.
Learn more about Spanish grammar