A subordinating conjunction which does not attach a dependent verbal clause but functions in the clause as a particle (expressing modality, the speaker's standpoint), is not hidden but represented by a separate node in the tectogrammatical tree, a dependent node of the effective root node of the clause, with the functor ATT (nodetype=atom). For example:
Když.ATT ale vy to nevidíte dobře. (=emphatic: But you can't see it clearly.)
NB! The node for a subordinating connective never has the functor PREC (see Section 7.4, "PREC").