1. Each component of intonation has its own peculiarities, but in spoken language they cannot be separated from one another and function as a whole. They are equally important and mutually dependent.
2. Without a special intonation an isolated word cannot be regarded as a communicative unit performing a definite linguistic function.
3. No syntagms exist without certain intonation patterns, at the same time, no intonation patterns are possible without syntagms.
4. The changes of pitch are not haphazard variations.
5. Rhythm a complicated language system, comprising well-organized elements of different sizes in which smaller rhythmic units are joined into more complex ones.
6. The meaning of an English utterance derives not only from the grammatical structure, the lexical composition but also from variations of intonation.