how to change nouns to verbs
There are no specific rules for changing nouns into verbs. Remember, verbs are action words. Keeping that in mind, try to use the noun as a verb in a given sentence.
You can use the example given by your friend Anoushka. 'Fright' is a noun. Now use this noun as a verb. The sentence will become:
I tried to frighten him.
Here, 'frighten' is a verb.