§ 5. As part of the constructional system of syntactic paradigmatics, kernel sentences, as well as other, expanded base-sentences undergo derivational changes into clauses and phrases.
The transformation of a base sentence into a clause can „be called "clausalisation". By way of clausalisation a
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sentence is changed into a subordinate or coordinate clause in the process of subordinative or coordinative combination of sentences. The main clausalising procedures involve the use of conjunctive words — subordinators and coordinators. Since a composite sentence is produced from minimum two base sentences, the derivational processes of composite sentence production are sometimes called "two-base transformations". For example, two kernel sentences "They arrived" and "They relieved me of my fears" (→I was relieved of my fears), combined by subordinative and coordinative clausalising, produce the following constructions:
→ When they arrived I was relieved of my fears. → If they arrive, I shall be relieved of my fears. → Even though they arrive, I shan't be relieved of my fears. Etc. → They arrived, and I was relieved of my fears. → They arrived, but I was not relieved of my fears. Etc.
The transformation of a base sentence into a phrase can be called "phrasalisation". By phrasalisation a sentence is transformed either into a semi-predicative construction (a semi-clause), or into a nominal phrase.
Nominal phrases are produced by the process of nominalisation, i.e. nominalising phrasalisation which we have analyzed before (see Ch. XX). Nominalisation may be complete, consisting in completely depriving the sentence of its predicative aspect, or partial, consisting in partially depriving the sentence of its predicative aspect. Partial nominalisation in English produces infinitive and gerundial phrases. By other types of phrasalisation such semi-clauses are derived as complex objects of infinitive and participial types, various participial constructions of adverbial status and some other, minor complexes. The resulting constructions produced by the application of the cited phrasalising procedures in the process of derivational combination of base sentences will be both simple expanded sentences (in case of complete nominalisation) and semi-composite sentences (in case of various partial nominalisations and other phrasalisations). Cf.: —» On their arrival I was relieved of my fears. —» They arrived to relieve me of my fears. → They arrived relieving me of my fears. →Having arrived, they did relieve me of my fears. Etc.
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As is seen from the examples, each variety of derivational combination of concrete sentences has its own semantic purpose expressed by the procedures employed.