ترجمه - انگلیسی-لاتین - Don't fear death

Where is this "mete" from? Could you please tell me the basic form of this verb?

"metuo, metere, metui, metutum" = "to be afraid of"; isn't that the imperative form (for singular)?

metuo, metuĕre, metui

That's right, sorry! As for "nolo, nolle, nolui", I didn't know the verb so far. Then comes "letum, leti". Isn't "leto" the appropriate form here (decl a II-a, Abl. sing.)?