に先立って => before; prior to ~ N2
に[先立「さきだ」]って/に[先立「さきだ」]ち/に[先立「さきだ」]つ => Before A occurs/takes place N2
Time, Situation
て形 => Te form N5
Conjugate verbs
条件形 => Conditional form N4
可能形 => Potential form N4
過去形 => Past form N5
Conjugate verbs
意向形 => volitional form​ N4
使役形 => Causative form N4
受身形 => Passive voice N4
命令形 => Imperative form N4
否定形 => Negative form N5
Conjugate verbs
辞書形 => Dictionary form N5
Conjugate verbs