It's difficult to determine bearish, but the first thing we can see is the large global trading volume and look at the latest information about the market, what causes it and why that is, what I told you is only a small part of the bearish signs and there are many other factors, so it's quite difficult, trade carefully and stay abreast of market information
It is very difficult to predict the market. Talking about the large global trading volumes, it what makes it even difficult to predict the market direction because of the presence of the institutional traders or the market movers. These institutional traders make it difficult for ordinary traders to predict the market. If an ordinary trader wants to go against the institutional traders, it will be at their own peril.
I don't know of any such way. In fact, there is nothing that predicts bear market. But if you are doing regular trading then you can predict something like the volume is going down. But it can't be certain. But if you are very expert in trading you can guess. In that case you have to be a regular trader.
I like the language you used. An expert can predict or guess we'll but not always accurate. The problems we have in the market is the gamblers who call themselves traders. They do not understand the market and yet they trade, making the market more risky than expected.