I have a Boston Terrier she is almost 7 months old and still isn't understanding the potty training thing. How can I get her to show us she needs to go? We can catch her before she goes usually but I can't watch her every minute.

When you are around you need to keep a close eye on the dog. Use closed doors or gates to keep it in the same room as you are, and perhaps as I do, a short chain fastened to the computer desk. If you catch it in the act, give it a sharp ''Ah, ah, ah!'' and take it out. When you can't watch it, crate it.

A dog that has not been crated since it was little, make take some work.
Start just putting its toys and treats in the crate. Praise it for going
in. If you have been able to trust it with any bedding, put that in the crate.
Feed it in the crate. This is also an easy way to maintain order at feeding
Time for more than one dog.

There is much more material you need in the sticky starting at https://www.askmehelpdesk.com/dogs/i...tml#post251802

It can be applied to older dogs too. Biggest difference is the longer time after eating or drinking before they are ready to relieve themselves. You will need to learn to read the dog and learn its schedule, and when it needs to go out. Keep it in sight, closing doors and setting up gates. Some people even leash the dog to themselves. I have used a tie down at my computer desk.