When other negating words such as "never", "nobody", etc. appear in a sentence, the negating "not" is omitted (unlike its equivalents in many languages): "I saw nothing" or "I didn't see anything", but not (except in non-standard speech) *"I didn't see nothing" (see Double negative). Such negating words generally have corresponding negative polarity items ("ever" for "never", "anybody" for "nobody", etc.) which can appear in a negative context but are not negative themselves (and can thus be used after a negation without giving rise to double negatives).