6.2 The syntax of inflection
Let us now focus attention on the inflectional element itself to see some of the syntactic processes that concern it. Here we will be concerned with certain movement phenomena involving the inflection and the process of auxiliary insertion discussed in the last chapter.
When the inflection is represented by a free morpheme, such as a modal auxiliary or the infinitival to, nothing much happens to it. As a free morpheme it can stand by itself and hence we see it sitting in the head position:
(17) | a | |
b |
(17) represents the D- and S-structures of the sentence Sam should phone Fiona. As discussed in the previous chapter, the agent originates in the specifier of a light verb, the position to which this Θ-role is assigned. It moves to the specifier of the IP, a process we will discuss in the next section. The verb heads the lower VP and moves to support the light verb. The inflectional element is unaffected by any process. Exactly the same is true for an infinitival clause:
(18) | a | |
b |
Here (18) provides the D- and S-structures for the infinitival IP in a sentence like I want [Sam to phone Fiona]. Again, the same movement processes are observable and again none of these involves the inflection itself.
6.2.1 Inserting auxiliaries into I
6.2.2 Do-insertion
6.2.3 Tense and Agreement
6.2.4 Movement to tense and I