Few Explanations on What did David say to the engineer in Prometheus?

It probably wouldn't of mattered what he said. Look at it from the engineers point of view. David woke him up from a 2 million year hyper sleep. He sees all these Strange people on his ship. one of them shoots his space suit. Then david has the arroagance of asking him to give old daddy Weyland more life! No wonder he wanted to go back to earth and kill everything with the black goo!

I don't know why people are asking. Weyland tells him to tell the Engineer to give him more life. David does so. There is nothing ambiguous about the situation.... unless you ask what I was asking, which was "How in the name of Satan's Cereal did David learn the Engineer's language?"