当然だ/当たり前だ => natural; as a matter of course N2
予定だ => plan to, intend to N4
…のも無理 (は) ない => It's natural for... N3
Evaluate
のも無理もない => (to be) natural,(to be) understandable N3
Evaluate
て~て => Connect sentences N5
Line up, list
て … て => ... So very ..., extremely N3
Evaluate
ても~ても => even if ~ N4
Line up, list
て/なくて => Because/Because not N4
ては~ては => repetitive situations/actions N2
~をたて(~を経て)      => through; after; via N1
~にしてはじめて      => since at ~ N1
~ さて...てみると => Until ... then, ... then... N1
Time