过去

pass; go; lapse; elapse; go by; pass by; past; yesterday; yesteryear; back; before; once; old; period; gone; bygone; erstwhile; old-time; of yesteryear; once upon a time

现在

now; present; current time; today; present time; the present; current; existing; yet; here; currently; nowadays; presently; this; right now; just now; at present; at the moment

未来

future; forward; would-be; coming; approaching; next; prospective; futuristic; tomorrow; time to come; prospect; futurity; in the future; in front of