当然だ/当たり前だ => natural; as a matter of course N2
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
てしまっていた => Did by accident / finished N4
Completed
て仕方がない/てしょうがない => can't help but; very; extremely ~ N2
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
と言っていました => Someone said... N4
Speaking
にしてからが => Even... N1
Demonstrate by example
~ ほうがましだ => better than; would rather ~ N1
Evaluate
だけしか~ない => only N3
ていけない => Suddenly... N3
Simultaneously
~ようが...まいが => whether or not; regardless N1
てしまった => to finish N4
Description