Short Abstract: Some sentences with presupposition triggers can be
felicitously uttered when their presuppositions are not entailed by the
context, whereas others impose a contextual felicity constraint (CFC)
(Tonhauser et al., 2013) requiring that their presuppositions are entailed.
We present a semantic rating study that assesses which triggers are subject
to CFCs. We test 13 different English presupposition triggers, making our
study the largest cross- trigger comparison in the literature to-date.