how to read method body and identify expressions in c# reflection?

I want to know if is possible to get the method body via c# reflection and identify expressions, conditions, loops etc.

For example, assume I have a class,

class Employee
{
private int Number1{get;set;}
private int Number2{get;set;}

public int GetNumber()
{
  if(Number1>0)
  {
     return Number1;
  }
  else if(Number2>0)
  {
     return Number2;
  }
  return Number1 + Number2;
  }
}

So here if you see the above class is having a method with some conditions. In reflection I want to read the method body and identify these conditions. Like,

var methodBody = methodInfo.GetMethodBody();
methodBody.Condition?????