Verb or Gerund?

Tania is excited because she's going to the park with her family.

Swimming is an excellent way to stay in shape and avoid injuries.

We want to talk about training to run a marathon.

Where are they traveling for their summer vacation?

What do you think about riding our bikes to work this week?

The students loved hearing all the gossip.

The doctor suggested losing some weight.

They were planning to go out to eat for dinner tonight.

When are you helping them move into their new house?

Running is really hard on my knees, so I walk instead.