コーヒーを持ってきたよ。

coffee

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to hold (in one's hand); to take; to carry; to possess; to have; to own; to maintain; to keep; to last; to be durable; to keep; to survive; to take charge of; to be in charge of

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!