Dear Teachers,
I know
#1 "The food will expire on tomorrow."
is correct.
However, I am not sure whether
#2 "The food will be expired on tomorrow."
and
#3 "The food will be expiring on tomorrow."
are possible.
Thanks a lot.
None is natural. Food cannot expire.
The food should be consumed by tomorrow.
The 'use-before' date of this food is tomorrow.
No
Contracts, mandates, terms, passports, licences, leases, etc expire (run out, become no longer valid).
Where I come from, food has expiration dates.
That said, "the food expires tomorrow" or "the food will expire tomorrow" are natural expressions.