For each form you create the User Registration plugin provides a shortcode. You can find it at the top of the form builder.
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Once the form is created, you will be given the shortcode. Shortcode will be different for different forms.
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Place this shortcode in the page or post you want the registration form to appear.
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Or, you can simply insert the User Registration Block to add the form you created. For this, just search for User Registration and Select the Form you want to add.
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Locate Registration Forms
You can see where the form is located on your site with the help of the locate button on User Registration > All Forms.
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On every form, you will see a ‘Locate’ button. Click on this button and you will see the page location of the form. In the above image. it says ‘Form found in page: Registration’.