just now是什么时态的时标

　　Money is tight just now in the bank.

　　现在该银行的银根很紧。

　　We did not conduct a single transaction until just now.

　　我们到现在才开市。

　　Who were you talking to just now?

　　你刚才在跟谁说话？

　　I'd love to have a break, but I can't spare the time just now.

　　我是想休息一下，可眼下找不出时间。

　　Just now I thought I saw someone.

　　我想我刚才看到了什么人。