• A language as a lexicon and a grammar generate infinitely many different sentences out of a finite set of rules
• Machine translation that it does not try to unpick or understand anything.
• Some domain machine translation could not do anything useful.
• Not conceived or programmed to take into account the purpose, real-world context or style of any utterance.
• Machine translation is very patchy program
• “In search of Lost Time” because it comes out as an ungrammatical