My student once asked me about one sentence he read on one particular site. It says " Attached is the receipt." He asked about what kind of grammar is used in the sentence. I am not sure if it is really an inverted sentence, but while surfing the net for answers, I accidentally saw something that could help me figure it out. One of the commenters in a much closer topic with mine said that it is what we call reduced relative clause. Please help me.
"Attached is the receipt" is using the so called "subject-verb" inversion where the subject and the main verb switch positions and the word order becomes "verb + subject", not "subject + verb". The linked Wikipedia article on Inversion (linquistics) has some examples.
If you don't use the inversion, the sentence becomes:
The receipt (subject) is (an auxiliary verb to make the passive voice sentence) attached (a main verb).
Note: Attached could be considered as an adjective, but still it is a subject-verb inversion.
When the verbs such as to attach, list, enclose are used in the passive voice, it is common to use the inverted sentence as in:
Enclosed is the list of participants to the conference.
Listed are the names of participants to the conference.
The reduced relative clause is a clause where a relative pronoun alone or a relative pronoun together with the verb "be" are omitted as they are not absolutely required. Some examples are listed here.