Datapoint Jamaican/Social variation: morphosyntax
The presence of a continuum of varieties in Jamaica makes it difficult to give a definitive answer to this question. There is some (mesolectal) variation in the sphere of grammar, e.g.
A iit-in.
[1SG.SBJ eat-PROG]
'I am eating.'
vs. the basilectal version:
Mi de nyam.
[1SG PROG eat]
'I am eating.'
For those familiar with the situation, it will appear at first glance that the first sentence exemplifies the variety used by persons higher up on the social scale. However, this link between varieties which appear to be closer to English and good socioeconomic standing is not categorical.
Values 
Limited
- Confidence:
- Very certain