Hello @Jennifer_Thompson
I recommend working with rules. You can set up and trigger a lot with these.
Regarding adding subtasks have a look here: Add "Create subtask" as an Action for Rules
You can also work a lot with custom fields that would then trigger a new action.
So basically in the form you create the result for specific questions is connected to a custom field. And depending on the option it then triggers a new action.
In case the project has tasks being created via form submissions and normal tasks then you might consider having a separate project where the submissions flow in so you can have all the rules set up there and they won‘t impact other tasks. And you can then have a rule to multihome the task (if required)
Alternatively if you would like even more customization and rule features you might want to have a look at Flowsana.