English verb conjugation
COULD INGEST

Regular verb: ingest - ingested - ingested

Affirmation

Simple form	V-ing form
I could ingest you could ingest he could ingest we could ingest you could ingest they could ingest	I could be ingesting you could be ingesting he could be ingesting we could be ingesting you could be ingesting they could be ingesting
Perfect	V-ing perfect
I could have ingested you could have ingested he could have ingested we could have ingested you could have ingested they could have ingested	I could have been ingesting you could have been ingesting he could have been ingesting we could have been ingesting you could have been ingesting they could have been ingesting

Negation

Simple form	V-ing form
I couldn't ingest you couldn't ingest he couldn't ingest we couldn't ingest you couldn't ingest they couldn't ingest	I couldn't be ingesting you couldn't be ingesting he couldn't be ingesting we couldn't be ingesting you couldn't be ingesting they couldn't be ingesting
Perfect	V-ing perfect
I couldn't have ingested you couldn't have ingested he couldn't have ingested we couldn't have ingested you couldn't have ingested they couldn't have ingested	I couldn't have been ingesting you couldn't have been ingesting he couldn't have been ingesting we couldn't have been ingesting you couldn't have been ingesting they couldn't have been ingesting

Interrogative form

Simple form	V-ing form
could I ingest? could you ingest? could he ingest? could we ingest? could you ingest? could they ingest?	could I be ingesting? could you be ingesting? could he be ingesting? could we be ingesting? could you be ingesting? could they be ingesting?
Perfect	V-ing perfect
could I have ingested? could you have ingested? could he have ingested? could we have ingested? could you have ingested? could they have ingested?	could I have been ingesting? could you have been ingesting? could he have been ingesting? could we have been ingesting? could you have been ingesting? could they have been ingesting?

Interro-negative form

Simple form	V-ing form
couldn't I ingest? couldn't you ingest? couldn't he ingest? couldn't we ingest? couldn't you ingest? couldn't they ingest?	couldn't I be ingesting? couldn't you be ingesting? couldn't he be ingesting? couldn't we be ingesting? couldn't you be ingesting? couldn't they be ingesting?
Perfect	V-ing perfect
couldn't I have ingested? couldn't you have ingested? couldn't he have ingested? couldn't we have ingested? couldn't you have ingested? couldn't they have ingested?	couldn't I have been ingesting? couldn't you have been ingesting? couldn't he have been ingesting? couldn't we have been ingesting? couldn't you have been ingesting? couldn't they have been ingesting?