~且つ(かつ) => and N1
Line up, list
いつかの ... => Previously N4
Time
からつくる/でつくる => made from; made with N4
いつしか => before one knows N2
Accept, agree
いつか => Since when (Don't know) N4
Time
いつか ... た => Formerly (At some point) N4
Time
~かつて => once; before; formerly; ever; former N1
Time
いつか(は) => sometime; someday; one day N4
Future time
つつ => while; even though; despite ~ N2
つつ/つつも => While A, B. Although A (is beng done), B N2
Information, Report
~とも~ともつかぬ/ともつかない      => whether A or B (shows doubt or uncertainty between the two things) N1
なにかにつけて => to take every opportunity N3
Expected