Questions & Answers about Тренер дал команду, и мы начали бегать.
Дал is the perfective past of дать and means gave as a completed action. In this sentence, the coach gave one command, and that action is treated as a single finished event.
Давал would be imperfective and would suggest something like:
- he was giving a command,
- he used to give commands,
- or the action is viewed as ongoing/repeated rather than completed.
Here, the completed action gave the command fits best, because it is followed by the result: we started running.
Because дать normally takes a direct object in the accusative case, and команда is a feminine noun.
Its forms are:
- nominative: команда
- accusative: команду
So:
- Тренер дал команду = The coach gave a command
This is very similar to English give an order/command.