Your sentence
Je+ne+l'ai+pas+vu
Words in this sentence
ne
not (used alone to negate a verb, now chiefly with only a few particular verbs; see usage notes); not, no (used before a verb, with a coordinating negative element usually following; see usage notes); used in a subordinate clause before a subjunctive verb (especially when the main verb expresses doubt or fear) to provide extra overtones of doubt or uncertainty (but not negating its verb); the so-called "pleonastic" or "expletive" ne; in comparative clauses usually translated with the positive sense of the subsequent negative
Particle
avoir
to have; to own; to possess; to get; to have (to experience or suffer from a state or condition); to have (an age); used to form the compound tenses of most verbs, such as the perfect and pluperfect.; to have (to), must; (chiefly in se faire avoir) to have (to trick; to con)
Verb
pas
The most common adverb of negation in French, typically translating into English as not, don't, doesn't, etc.; used as an intensifier in underlying rhetorical questions, mostly with voilà
Adverb