Negative Sentence into Affirmative

Negative sentence into affirmative:
Negative से affirmative बनाने की प्रक्रिया affirmative से negative बनाने की प्रक्रिया के ठीक विपरीत है। जैसे; not always = sometimes; no one = everyone; not good = bad; not kind = cruel; not getting help= helpless; no sooner than = as soon as आदि।
Look at these sentences:
Negative-
(a) Never tell a lie.
Affirmative-
(b) Always speak the truth.