Intermediary communicative sentence models may be identified between all the three cardinal communicative correlations (I.E. Statement – question, statement – inducement, inducement – question).

e. g. “I wonder why they come to me about it. That’s your job, sweetheart.”

The example shows that the utterance which is declarative by its formal feature, at the same time contains a distinct pronominal question.

Utterances intermediary between statements and questions convey meanings and connotations that supplement the direct programming of the answer effected by strictly monofunctional, cardinal interrogative constructions. On the other hand, in the structural framework of the interrogative sentence one can express a statement. This type of utterance is classed as the rhetorical question.

e. g. Can man be free if woman is a slave?

Who shall decide when the doctors disagree?

A rhetorical question in principle can be followed by a direct answer, too. However, such an answer does not fill up the rheme of the rhetorical question, but emphatically accentuates its intensely declarative semantic nature. The answer to a rhetorical question can quite naturally be given by the speaker himself.

e. g. Who, being in love, is poor? Oh, no one.

Rhetorical questions as constructions of intermediary communicative nature should be distinguished from such genuine questions as are addressed by the speaker to himself in the process of deliberation and reasoning. The genuine quality of the latter kind of questions is easily exposed by observing the character of their rhematic elements.

e. g. Had she had what was called a complex all this time? Or was love always sudden like this? A wild flower seeding on a wild wind?

(J. Galsworthy)

The cited string of questions belongs to the inner speech of a literary personage presented in the form of non-personal direct speech. The rhemes of the questions are typical of ordinary questions in a dialogue produced by the speaker with an aim to obtain information from his interlocutor. This is clearly seen from the fact that the second question presents an alternative in relation to the first question. As regard the third question, it is not a self-dependent utterance, but a specification, cumulatively attached to the foregoing construction.

The next pair are declarative and imperative sentences. The expression of inducement within the framework of a declarative sentence is regularly achieved by means of constructions with modal verbs.

e. g. You ought to get rid of it, you know. (C. Snow)

“You can’t come in”, he said. “You mustn’t get what I have.”

(E. Hemingway)

Imperative and interrogative sentences make up the third pair for intermediary communicative patterns.

Imperative sentences performing the essential function of interrogative sentences are such as induce the listener not to action, but to speech. They may contain indirect question.

e. g. “Tell me about your upbringing.” – “I should like to hear about yours”

(E. J. Howard)

“Please tell me what I can do. There must be something I can do.” – “You can take the leg off and that might stop it…” (E. Hemingway)

The reverse intermediary construction, i.e. inducement effected in the form of question, is employed in order to convey such additional shades of meaning as request, invitation, suggestion, softening of a command, etc.

e. g. Why don’t you get Aunt Em to sit instead, Uncle? (J. Galsworthy)

In common use the expression of inducement is effected in the form of a disjunctive question. It gives a shade of a polite request or even makes it into a pleading appeal.

e. g. Find out tactfully what he wants, will you? (J. Tey)

And you will come too, Basil, won’t you? (O. Wilde)

The undertake survey shows that within each of the three cardinal communicative oppositions two different intermediary communicative sentence models are established and the communicative classification of sentences should be expanded by six subtypes of sentences of mixed communicative features. These are:

1. Mixed sentence patterns of declaration (interrogative-declarative, imperative-declarative).

2. Mixed sentence patterns of interrogation (declarative-interrogative, imperative-interrogative).

3. Mixed sentence patterns of inducement (declarative-imperative, interrogative-imperative)

All the cited intermediary communicative types of sentences belong to living, productive syntactic means of language.