Existence is the state of having being or reality in contrast to nonexistence and nonbeing. Existence is often contrasted with essence: the essence of an entity are its essential features or qualities, which can be understood even if one does not know whether the entity exists.
Present | am | are | |
| is | | |
Past | was | were | |
Future | will | | |
Past | been | became | |
Present | be | being | |
Future | will be | will become | |
| | | |
| | | |
| | | |
Ambiguous Consequential state of the
body or thing which are maintained by
the real states which is either
brain or
an artificial source
the representative states which are either the
mind or a spiritual source