If      ← {𝕏⍟𝕎@}´                 # Also Repeat
IfElse  ← {c‿T‿F: c◶F‿T@}
While   ← {𝕩{𝔽⍟𝔾∘𝔽_𝕣_𝔾∘𝔽⍟𝔾𝕩}𝕨@}´  # While 1‿{... to run forever
DoWhile ← {𝕏@ ⋄ While 𝕨‿𝕩}´
For     ← {I‿C‿P‿A: I@ ⋄ While⟨C,P∘A⟩}

# Switch/case statements have many variations; these are a few
Match   ← {𝕏𝕨}´
Select  ← {(⊑𝕩)◶(1↓𝕩)@}
Switch  ← {c←⊑𝕩 ⋄ m‿a←<˘⍉∘‿2⥊1↓𝕩 ⋄ (⊑a⊐C)◶m@}
Test    ← {fn←{C‿A𝕊e:C◶A‿E}´𝕩⋄Fn@}