Question

Defining relative clauses:

Accepted Answer

We can leave out the relative pronoun when it refers back to the object of the defining relative clause.

Maybe there's a neighbor (that) you can ask.
(neighbor is the object of the verb).

In the evening, a house that's very dark can really stand out.
(house is the subject of the verb: not a house is very dark can really stand out).

Front	Defining relative clauses:
Back	We can leave out the relative pronoun when it refers back to the object of the defining relative clause. Maybe there's a neighbor (that) you can ask. (neighbor is the object of the verb). In the evening, a house that's very dark can really stand out. (house is the subject of the verb: not a house is very dark can really stand out).

Relative Defining Object House Dark Stand Clauses Leave