The verb "suru (to do)" has many extended uses that occur quite often.
(a) Adverb form of I-adjective + suru
To change I-adjective to adverb form, replace the final ~i with ~ku. (e.g. ookii ---> ookiku)
b) Adverb form of Na-adjective + suru
To change Na-adjective to adverb form, replace the final ~na with ~ni. (e.g. kireina ---> kireini)
It should be used when you are choosing from several available alternatives.
When accompanied by phrases indicating prices, it means "cost."
To feel, to smell, or to hear
Loan word + suru
The loan words are often combined with "suru" to change the word into a verb.
Noun (of Chinese origin) + suru
It is combined with nouns of Chinese origin to make a noun into a verb.
The particle "o" can be used as an object particle after a noun. (e.g. "benkyou o suru," "denwa o suru") There is no difference in meaning with or without "o."
Adverb or Onomatopoetic expression + suru
Adverb or onomatopoeic expression can be combined with "suru" to change them into verbs.