ひとつ…できない => cannot do the bigger things N3
Ability
のが好き/のが嫌い => Like (doing something)/Hate (doing something) N4
きらい => Hate... N5
Ability
~きらいがある => bad habit; to have a tendency to ~ N1
Trend
~むきがある(~向きがある)     => There is a tendency N1
いつかの ... => Previously N4
Time
つきましては => about; concerning; regarding N2
Cause, reason
につき => due to; because of; per; each N2
に...ができる => complete N4
Completed
いつも => always; usually; habitually N5
~つい      => accidentally; unintentionally; by mistake N3
Regret
きらいがある => There is a tendency to do A N1
Potential, Possibility