TM superscript symbols cannot be typed directly on the page. You can use Sogou input method symbols to insert them. The method is as follows:

1. First, open Sogou input method and click on the desktop. That’s it. As shown in the figure below:

2. Click the green s on the left. When the list menu appears, select "More Tools", and then select "Symbol Collection". As shown in the figure below:

3. In the "Symbol Collection" dialog box, click the "Special Symbols" on the left, find the "?" trademark symbol on the left, and click it with the mouse to insert it. to the designated location. In this way, the lowercase letter tm will be typed. As shown below: