On grammatical class:

ja'a
bridi logical affirmer; scope is an entire bridi.
je'a
scalar affirmer; denies scalar negation: Indeed!.
na
bridi contradictory negator; scope is an entire bridi; logically negates in some cmavo compounds.
na'e
contrary scalar negator: other than ...; not ...; a scale or set is implied.
na'u
convert selbri to mex operator; used to create less-used operators using fu'ivla, lujvo, etc.
nai
attached to cmavo to negate them; various negation-related meanings.
no'e
midpoint scalar negator: neutral point between je'a and to'e; "not really".
to'e
polar opposite scalar negator.
ja'aru'e
weak bridi affirmation; barely; almost not at all.
je'abo
negation sumti qualifier: that which indeed is.
na'ebo
negation sumti qualifier: something other than.
naru'e
weak bridi negation; almost, but not quite.
no'ebo
negation sumti qualifier: the neutral form/value of.
to'ebo
negation sumti qualifier: the opposite of.
ja'ai
affirm last word: attached to cmavo to affirm them; denies negation by nai whenever it is applicable.
je'ai
NAhE question.
na'ei
Contradictory negation of a predicate