Page 11 - Handbook of English Grammar
P. 11
Clauses
1. Noun Clause
a. Kinds of Noun Clauses
1). Statements
a) as a subject
b) as subject after it
c) as an object of verb
d) as subjective complement
e) as an appositive
2) Questions
a) Expecting yes and no answer
b) Interrogative word questions
3) Request
a) as an object of verb
4) Exclamation
a) as an object of verb
b) as an object of preposition