Detecting modal-like expressions

[Alyarin]

Hi,
So i've run into a bit of a snag with my project. I need to comprehensively detect when 'modality' enters a sentence - be it through modal verbs (which spacy has a handy tagging system for), or more annoyingly through modal-like expressions. When focusing on modal-like expressions, I've tried rooting through the tagging system to find any patterns that could work, but ran into a snag when the major part of a modal-like expression which conferred modality to it... Was a simple past-tense verb ("we allowed for"). This obviously isn't specific enough.

Is there a concrete way to detect modal-like expressions built into spacy, or am I going to have to look for some statistical-based (and thus more messy) solution?