English verb conjugation
COULD ENTOMB

Regular verb: entomb - entombed - entombed

Affirmation

Simple form	V-ing form
I could entomb you could entomb he could entomb we could entomb you could entomb they could entomb	I could be entombing you could be entombing he could be entombing we could be entombing you could be entombing they could be entombing
Perfect	V-ing perfect
I could have entombed you could have entombed he could have entombed we could have entombed you could have entombed they could have entombed	I could have been entombing you could have been entombing he could have been entombing we could have been entombing you could have been entombing they could have been entombing

Negation

Simple form	V-ing form
I could not entomb you could not entomb he could not entomb we could not entomb you could not entomb they could not entomb	I could not be entombing you could not be entombing he could not be entombing we could not be entombing you could not be entombing they could not be entombing
Perfect	V-ing perfect
I could not have entombed you could not have entombed he could not have entombed we could not have entombed you could not have entombed they could not have entombed	I could not have been entombing you could not have been entombing he could not have been entombing we could not have been entombing you could not have been entombing they could not have been entombing

Interrogative form

Simple form	V-ing form
could I entomb? could you entomb? could he entomb? could we entomb? could you entomb? could they entomb?	could I be entombing? could you be entombing? could he be entombing? could we be entombing? could you be entombing? could they be entombing?
Perfect	V-ing perfect
could I have entombed? could you have entombed? could he have entombed? could we have entombed? could you have entombed? could they have entombed?	could I have been entombing? could you have been entombing? could he have been entombing? could we have been entombing? could you have been entombing? could they have been entombing?

Interro-negative form

Simple form	V-ing form
could I not entomb? could you not entomb? could he not entomb? could we not entomb? could you not entomb? could they not entomb?	could I not be entombing? could you not be entombing? could he not be entombing? could we not be entombing? could you not be entombing? could they not be entombing?
Perfect	V-ing perfect
could I not have entombed? could you not have entombed? could he not have entombed? could we not have entombed? could you not have entombed? could they not have entombed?	could I not have been entombing? could you not have been entombing? could he not have been entombing? could we not have been entombing? could you not have been entombing? could they not have been entombing?