I'll correct them tomorrow when I'm on the bus to hikego hiking. I'll correct them tomorrow when I'm on the bus to go hiking.

When we talk about hobbies, using the -ing form is more natural (reading, cycling, hiking) especially here since you are taking the bus to go to the place where you will hike. the meaning is also clearer (you can't hike on the bus :))

I'll correct them tomorrow when I'm on the bus to hikego hiking. I'll correct them tomorrow when I'm on the bus to go hiking.

I'll correct them tomorrow when I'm on the bus to hikego hiking. I'll correct them tomorrow when I'm on the bus to go hiking.

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.

Using "to be" sounds more natural

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.

I noticed that there are several Chinese entries waiting for being correctedion today. I noticed that there are several Chinese entries waiting for correction today.

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.

I noticed that there are several Chinese entries waiting for beingto be corrected today. I noticed that there are several Chinese entries waiting to be corrected today.