"I think the man in the local shop is opposed TO the new supermarket" opposed followed by TO the man is opposed to new supermarket "I think the main in the local shop is opposing the new supermarket" opposing means actually protesting and complaining about it. sentence one is the natural way a native speaker would say it. for sentence two we would probably use another word. "the man in the local shop is against the opening of the new supermarket" against here means combating, fighting trying to prevent.

to be opposed to sth : to disagree strongly about sth

Hmm [emoji] I'm not sure if it's a present continous..

Because there is a be verb "is". If there's no "is" there, the answer would be opposed. I think the man in the local shop opposed to the opening of the new supermarket.

opposing