As a Miro User in my Scrum Master role,

I would like to have a Board with tasks and sub-tasks

So that I can track what is done and what is pending for that task in order be able to have a full view of where exactly in its lifecycle the task is. 

I am wondering is it possible to have a board with tasks and sub-tasks on Miro? 

Like the one we see on a simple Trello?

Often a task involves more than one steps and if we need to track those steps, sub-tasks often come handy - just a simple check list with a functionality of striking the items through to indicate they are done is enough to get the full story.