I have a license to use constract 2 and i want to switch to 3 But I've never seen constract 3. can i see constract 3 before buying???
Okay - apparently even Scirra staff aren't immune from the wrath of the spam bot.
Anyway, as I said, Construct 3 has a free edition just like Construct 2. And you can try it out now on construct.net - you can log in using your scirra.com account details:
https://www.construct.net/gb/make-games/releases
Develop games in your browser. Powerful, performant & highly capable.
Just go to https://editor.construct.net/ and start playing. You don't need to even log in you can use it as a guest.