It is no wonder Raj in the Big Bang theory couldn’t find the right past tense of “forbid”. The verb “bid” in the sense of either issuing a command or uttering a greeting is the only verb root following the “pattern” -id/-ade/-idden in the past tense:
The only other verb following the same pattern is its derived form forbid:
A slightly more common pattern is -ide/-ode/-idden:
ride – rode – ridden; also “override”
hagride – hagrode – hagridden
“Hagride” is an uncommon verb meaning “to afflict with worry or dread”. Its past tense has also another archaic form:
(so now you know where the name of Hagrid in J.K.Rowling’s universe came from). Finally, the verb abide, meaning “to stay in a place” or “endure” can follow two different patterns:
abide – abode – abode
The past participle of “abide” can be also “abidden”, but this form is archaic and rare.