~ないで (without doing / don't)
grammar35 sentences
The negative te-form ~ないで, used either as 'without doing X' (accompanying-manner sense — V-ない + で = 'without V-ing,' connecting two clauses 'do Y without X-ing') or as a casual negative request 'don't do X' (gentle prohibition). 見ないで ('don't look' / 'without looking'), 言わないで ('don't say'). Distinct from ~なくて, which leans toward state-of-affairs reasons.