Is 'subject' in 'is subject to considerable debate' a verb or a noun?
Solution 1:
Using the comments posted to the original question, I can assume the whole answer, which is:
- Yes, it is appropriate for formal writing.
- No, it probably won't fit in a casual informal conversation.
- 'subject' is an adjective, therefore its form is perfectly correct.
- The stress should be on the first syllable as ['sʌbʤekt].