If you are using TurboTax Online, the forms are not available.

This FAQ explains the differences between our editions to help you choose the version that's right for you: https://turbotax.community.intuit.ca/replies/3448448

In online editions, you can print a PDF of your completed forms as soon as you pay for your TurboTax return.

You can change your return and print as many times as you need to before you file; you don't need to file right after you pay.

Here's how to download/print a copy of your return: https://turbotax.community.intuit.ca/replies/2647808