This question has been asked since their discovery in 1930, and we are little closer to an answer today.

I've been asking it in this column every year since 2001.

A question that men and women had been asking each other since the beginning of time.

"An interesting question for you to ask, since it was your request that the Federation get involved."

I've been meaning to ask you since that Reilly almost.

"It's very simple," he said today, when asked about his political drift to the right since the election.

When he was through I told him those were questions humanity had been asking itself since the beginning of time.

Though I don't really need to ask since the idea is propoganda.

Speaking of that, I've been wanting to ask you since last night.

De Cortina says that he has been asking the armed forces for information since 1993.