または => or N4
~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1
…たりしたら/しては => ... Such as N3
Demonstrate by example
は~にあります => ...is in... (emphasis on subject) N5
Emphasize
あまり~ない => Not very ~ N5
Amount
あまり~ない => not very, not much ~ N5
まさか...とはおもわなかった => never thought that N3
Surprised
たまらない => can not bear N2
Emphasis on degree
~ないではすまない / ずにはすまない      => must; will definitely; can't help but to ~ N1
たり~たり => do such things as A and B N5
あまり => so much… N3
More or less in quantity
ずにはすまない/ないではすまない => A must be done N1
Potential, Possibility