Form 8990

I am trying to filing the taxes using Turbotax and I have received the K1 and while entering the k-1 information, I have received the message to 'you may need to print and complete a copy of form 8990 and attach it to your return. 

 

1. It says - you may? How can I check whether I need to or not?

2. How can I attach the form? Any steps?