About subordinated clauses embedded in other subordinated clause

Question

Is it correct to use subordinated clause that is already subordinated clause of other clause? E.g: if to take sentence "I know a place where I thought we could go" at that inside sentence "where we could go" other sentence "I thought" Is embedded ". Is it acceptable?

Answer 1

I know a place where I thought we could go ___ .

Yes, it's fine, and quite common. Here, the subordinate content clause we could go is embedded inside the subordinate relative clause where I thought we could go.

The relativised element, "where" functions as complement of go in the embedded content clause, as indicated by the gap notation '___'.

We understand that I know a place, and that's the place where we could go.