Full Idea
There are many predicates of a given language that resist translation into another language, …so it is unlikely that there is a basic set of underlying structures common to all languages.
Gist of Idea
Many predicates totally resist translation, so a universal underlying structure to languages is unlikely
Source
Gilbert Harman (Thought [1973], 5.4)
Book Reference
Harman,Gilbert: 'Thought' [Princeton 1977], p.81
A Reaction
Not convincing. 'Structures' are not the same as 'predicates'. Once a language has mapped its predicates, that blocks the intrusions of differently sliced alien predicates. No gaps.