Different Types of Auxiliary Verb Constructions

There are five main types of auxiliary verb constructions: auxiliary headed, double headed, split headed, split slash double headed, and lexically headed. The auxiliary headed construction is the most common, where the auxiliary verb takes all the necessary marking and the lexical verb is in a less finite form. The double headed construction is when both the auxiliary and lexical verb are marked, often including the subject and object. In the split headed construction, some markings are on the auxiliary and some on the lexical verb. The split slash double headed construction combines elements of both. The lexically headed construction is controversial, as the auxiliary appears more like a particle and the lexical verb carries most of the marking.