Wheelock's Latin 'Chapter 2' Vocabulary Principal Parts
hapter 1 Vocabulary Principal Parts:
To get to the 'Stem' just take the 2nd Principal Part and 'Drop the Ending.'
The Singular Imperative is Identical to the Present Stem, and the Plural Imperative is formed by adding 'te' to that stem: 2nd Person Singular: Lauda, praise! mone, advise!
2nd Person Plural: Laudate, praise! monete, advise!