quenya_grammar1-9  Exercise 2: Negation
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  I did not make      uan carnë   /   únen carë
  I shall not make    uan caruva  /   úvan carë
  I have not made     uan acárië  /   uien carë

Way 1: ua- + the pronoun ending (uan), then the verb in the tense wanted.
Way 2: a tensed form of ua- (únen, úvan, uien), then the plain stem carë.

All six forms are printed in the page's negation table, so they are attested
in that source (a secondary summary of Tolkien's notes).