I don't know why this comment was downvoted, because the only way to know this is a question in portuguese just listening to it would be a change in the intonation, and the robotic voice is clearly making a statement, not asking a question. This could be very confusing.
What is the difference between this and the statement, "You fish." There is no rise in the speaker's voice to show that it's a question.
PH, doesn't that mean Are you going to fish? In English, Do you fish? and Do you go fishing? are pretty much the same thing. They are not future tense.