The phrase "about your supposed" is correct and usable in written English.
It can be used when discussing something that is assumed or believed to be true, often in a context where the assumption is questioned or challenged.
Example: "I have some concerns about your supposed expertise in this area, as I haven't seen any evidence of it."
Alternatives: "regarding your alleged" or "concerning your supposed".
It is everything that makes you feel a bit smugger about your supposed flowering into a discerning, cultured adult.
I wish my 20-year-old internself knew to not harp so much about your supposed abilities and focus on learning the position.
The LA Times and LA Weekly have already written hopeful articles about your supposed return, and, as a boy who is paid to comment on happenings, that's enough to warrant this "barfticle".
If your friend has given something to your other friend but not to you, don't get heated up about your supposed inferiority and your friend's supposed superiority.
In essence, it involves endless and bitter complaints about your opponents' supposed advantages -- to your own future advantage.
Everything about your wedding is supposed to be perfect... which is exactly why it's so funny to photobomb wedding pictures.
When you lie about your challenger's supposed efforts to weaken limits on welfare while implicitly contending that anyone who needs government help is a loser, word gets out that concern for the vulnerable is not your defining feature.
Instead of wringing your hands about the supposed unworkability and unpopularity of a single-payer plan (even in the face of the highly successful and popular Medicare, with a 40-year track record), The Times should put its considerable influence behind the only real solution to the health care crisis: Medicare for all.
Find any information you have in your own records about the supposed debt.
"What could parents possibly learn about their child's abilities from such crazy results?" Here's one way to think about it: Suppose your worth was measured by how much money you earned for a company, but the fellow who kept track of everyone's earnings periodically forgot how to count.
If someone jokes about your name you are supposed to take it in good stead.
