Re: how do you know when to use "most probable" and "most probably"?
Hi anne.live,
Probable is an adjective.
Probably is an adverb.
Examples:
“Nicotine is a probable cancer-causing agent.”
“Nicotine is probably a cancer-causing agent”
Now, you should study more on the difference between adjective and adverb.
Regards,
José Manuel Rosón Bravo