Nominal sentences name a person or thing. The main member in such
sentences is expressed by a noun.
e.g.
Winter. Snow .
The main member of infinitival sentences is expressed by an infinitive.
Infinitival sentences are fairly common in spoken English and literary prose. Like
other units of predicative value, they can communicate not only their denotative
meaning but also the connotative suggestions of various circumstances of their use.
e.g.
To talk like that to your own mother! To have eloped with a butler!
One-member sentences should be kept apart from two-member sentences
with either the subject or the predicate omitted, i. e. from
