[必要「ひつよう」]はない => It is not necessary for A to be done N2
Needs, Requirements
つつ/つつも => While A, B. Although A (is beng done), B N2
Information, Report
ようだ => Looks as if A N3
Adjectival, Description
ようだ => Looks as if A N4
Situations and Experiences
というより => Rather than A N3
Comparison, Exchange
に[比「くら」]べて/に[比「くら」]べ => When compared to A N3
Comparison, Exchange
ようと[思「おも」]う => I think I will A N4
Causative, Passive, Volitional
かのようだ => It's as if A N2
Adjectival, Descriptions
べからざる => Cannot A N1
Potential, Possibility
ようになる/なくなる => Become… N3
Time, Situation
よう => The way that A, the condition of A N1
Adjectival, Descriptions
つ~つ => Doing A and B (repeatedly, one after another) N1
Information, Report