saint abjured worldly benefits for salvation.
No, "abjure" is not a noun. It is a verb that means to solemnly renounce a belief or claim.
I secured the gate.
Verb
Using a word that tells you someone is doing an acton
He crafts chess pieces from stone.
Bear in mind that "was" is the past tense of the verb "to be" and therefore is always a verb. A typical sentence would be: I was happy to see you.
The verb is "will write"-- we use the helping verb "will" to show that the action (in this case, "write") occurs in the future tense.
I was going to legitimately answer this question till I realized how ridiculous it was.
The man's cells where mutating because of the nuclear radiation.
which is not a verb
The Kind subdued the peasants from cultivation, leading to starvation.
Example of a mob: The police had to use tear gas to subdue the mob.