[必要「ひつよう」]はない => It is not necessary for A to be done N2
Needs, Requirements
にひきかえ => In contrast to A N1
Comparison/ Exchange
つつ/つつも => While A, B. Although A (is beng done), B N2
Information, Report
つ~つ => Doing A and B (repeatedly, one after another) N1
Information, Report
つつある => In the middle of A; in the process of A N2
Time, Situation
しまつだ => Denotes negative results A N1
Reason, Result, Response
つもりだ => Plan to, be going to N4
Sentence Endings
[続「つづ」]ける => continues, to continue to N4
Secondary Verb
つもりだ => Plan to A, not to A N3
Will, Decision, Doing
あかつきには => After A then B N1
Time, Situation
につれて => As A changes, B changes (together) N2
Information, Report
につけ => During both times/situations A and B, N2
Time, Situation