たいして…ない => ~is not much of~ N3
Emphasis on degree
~たいしたことはない => trivial,not amounting to much N1
Emphasize the negative meaning
に[限「かぎ」]った[事「こと」]ではない => It's not limited to A, it's not only A N1
Degree/ Level/Amount
たしかに/なるほど~かもしれない => might; perhaps N3
Speculation
たいした ... ではない => not ... considerable; great; important; significant; a big deal N2
Emphasis on degree
~ ば/たら~かもしれない => If only... then... N2
Regret
~ ば/たら~かもしれない => If...then maybe... N3
Condition (hypothetical condition)
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
もしかすると/もしかしたら~かもしれない => perhaps; maybe; perchance; by any chance ~ N3
もし~たなら => If A … N3
Conditional, While
…たりしたら/しては => ... Such as N3
Demonstrate by example
たいした ... だ => considerable; great; important; significant; a big deal N2
Exclamatory