Over the last 30 years or so, a significant amount of research has been carried out on the genesis and development of creoles. This research has shown that the creators of creoles' first languages made an important contribution to creole grammars, but that their overall role in any specific case was largely dependent on the social circumstances in which the creole emerged. This suggests that substrate influence always interacted with other sources. However, to date, relatively little research has been done on the various ways in which the creators' first languages influenced specific creole features and how this interaction was determined or constrained by other processes and sources. The aim of this paper is to investigate these issues in more detail in the light of ongoing research on the formation and development of the Tense, Mood and Aspect system of the creoles of Suriname.
