_INFDO Infinitival DO (helper)

Definition

Helper feature: “to do/does/did” sequences. Used only for exclusion by DOAUX to prevent counting infinitival DO as auxiliary DO.

Detection Rules

mfte

cql[word="to"] [word="[Dd]o|[Dd]oes|[Dd]id" & pos="VB.*"]

Requires: word, pos

Anchor: last

Refines: VB

Normalization

Per words

Sources

  • mfte — Le Foll, Elen & Shakir, Muhammad (2023/2025) : Multi-Feature Tagger of English (MFTE) — Python version

Notes

Internal helper feature, not counted independently. MFTE excludes “to do” from DOAUX via a precondition check; CQL cannot express lookbehind, so we use a span-aware excludes mechanism instead.