The verb "to govern" is the verb form of the noun government.
The verb avert does not have a corresponding noun, it does, however, have a corresponding adjective: avertable.
There is no verb corresponding to the adjective voracious.
No solution is a noun. Solve is the corresponding verb.
describe
to tighten,
Corresponding verb to the noun central is centralise (or centralize)
Advertisement is the corresponding noun to the verb advertise
The corresponding noun to the verb flee is flight.
The corresponding noun form of the verb "to widen" is "wideness."
The verb corresponding to the noun sleep is to sleep - slept - slept
The corresponding verb to statement is to state.
Argument, arguerer, and the gerund, arguing are the corresponding noun forms for the verb to argue.