Set up google tag for a form that used in single post template

Hi guys,

I am trying to set up a Google tag for form submission but the thing is that I am using the same form for many posts (the form is part of a single post template) so I can’t find the unique id/parameter that I can target the Google tag.
Is there any way to do it?
Here are several pages that share the same form (you will see it once you click on the “Contact” button):
https://www.worldpronet.com/gbo/renue-cleaning-services-for-luxury-hotels-ho405838a/
https://www.worldpronet.com/gbo/sustainable-safe-thermal-insulation-acoustics-and-interior-decor-solution-c932413/

Thanks for all your support.

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