Can I add second network card?

I am using HA on Hyper-v. I want to add another network. Can I add a network card to HA installed on VM?

Am running HA as a VM on supermicro server with two ethernet ports. I use one for the base machine and one for HA. Both are set up on the physical machine and I bridged one to the VM.

Thank you for your reply. I have more than two network cards on my server and one of them is bridged to the VM. My question is can I add the second and is there something specific I have to do to configure the second one?

One of the networks cards should have a default gateway and another one should not. I am asking how to do this.