に足りない/に足らない => cannot; not worthy; not worth doing ~ N1
に足る => worthy; worth doing N1
手前 => considering; before; in front of; one’s standpoint N1
のが下手 => to be bad at doing something N5
のが上手 => to be good at doing something N5
ようと...まいと => whether or not; regardless N1
Innocent
まいとする => Do not let... N2
Will, intention
うと~まいと,うが~まいが => Whether or not A (is/occurs) N1
Based/focused/depending on
と言っていました => Someone said... N4
Speaking
まんまと => successfully, fairly, artfully, nicely, thoroughly N1
Exclamatory
まず...だろう/ ...まい => Surely... N2
Speculation
~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1