sim basti lujvo

x₁ trades places with x₂ in circumstance x₃.

See also simxu, basti. Similar in meaning to basysi'u, but keeps basti's place structure.

lensisku

In notes:

basysi'u: x₁ (plurality/set) replace/trade places with one another in circumstance x₂.
simbasygau: x₁ interchanges x₂ and x₃ in circumstance x₄.
simvamborbastcini: x₁=t₁ is a trade-off, a situation in which increasing one quality or quantity decreases another, between x₂=b₁=v₂=s₁ (possibly a mass) and x₃=b₂=v₂=s₁ to [judge/subject] x₄=v₃ in matter/decision/strategy x₅=t₂=b₃=v₄.