could ingest
Regular verb: ingest - ingested- ingested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ingest
you could ingest
she could ingest
we could ingest
you could ingest
they could ingest 	I could be ingesting
you could be ingesting
she could be ingesting
we could be ingesting
you could be ingesting
they could be ingesting	I could have ingested
you could have ingested
she 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
she 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 	Perfect 	V-ing perfect 	
I could not ingest
you could not ingest
she could not ingest
we could not ingest
you could not ingest
they could not ingest 	I could not be ingesting
you could not be ingesting
she could not be ingesting
we could not be ingesting
you could not be ingesting
they could not be ingesting	I could not have ingested
you could not have ingested
she could not have ingested
we could not have ingested
you could not have ingested
they could not have ingested	I could not have been ingesting
you could not have been ingesting
she could not have been ingesting
we could not have been ingesting
you could not have been ingesting
they could not have been ingesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ingest?
could you ingest?
could she ingest?
could we ingest?
could you ingest?
could they ingest? 	could I be ingesting?
could you be ingesting?
could she be ingesting?
could we be ingesting?
could you be ingesting?
could they be ingesting? 	could I have ingested?
could you have ingested?
could she 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 she 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 	Perfect 	V-ing perfect 	
could I not ingest?
could you not ingest?
could she not ingest?
could we not ingest?
could you not ingest?
could they not ingest? 	could I not be ingesting?
could you not be ingesting?
could she not be ingesting?
could we not be ingesting?
could you not be ingesting?
could they not be ingesting? 	could I not have ingested?
could you not have ingested?
could she not have ingested?
could we not have ingested?
could you not have ingested?
could they not have ingested? 	could I not have been ingesting?
could you not have been ingesting?
could she not have been ingesting?
could we not have been ingesting?
could you not have been ingesting?
could they not have been ingesting?