13d) shows that the cause for this change is loss of the infinitive marker
-an (later -en), which produces a morphological deficiency and the change of parametric value.
Here is an example of infinitive marker
from the morphology of these languages: Limbu [Yakthumba] '-ma', Athapare '-ma', Bantawa '-ma', Rodung [Caroling] '-ma', Thulung '-mu', Khaling '-ha' (p.
Concerning the morphological infinitive marker
in Russian, this is unambiguously expressed by the suffix -t'.
In "To throw the ball is good," "To" is an infinitive marker
, a function beyond the purview of the eight parts of speech.
The table above shows that to is much more common than for to as the infinitive marker in all authors but two.
The infinitive marker for to becomes rare in later letters by John Paston III.
Notably, the infinitive marker
a `to' must be omitted in this construction, as in (18c), showing further proof of the reduced inflectional domain.