Is it okay to say " I believe on the contary " ?
Not as a sentence by itself, no. "I believe the contrary" is possible (feels like formal written English rather than conversational). " is OK.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Not as a sentence by itself, no. "I believe the contrary" is possible (feels like formal written English rather than conversational). "I believe, on the contrary, that ..." is OK.
You misspelled the word, and are putting spaces where none are required. You should write your question like this:
Is it okay to say "I believe on the contrary"?