When to use ”は” or ”が”？ My teacher explains the particles は and が like this: は is like a subject marker, which I understand. However, she says it's a bit like saying, "Speaking of this, ..." or "By the way, ..." whereas が is kind of just pointing out the subject directly. I understand that you would say, for example: 花が好きです, and not 花は好きです。But sometimes I mix the two particles up when I'm writing sentences. My teacher's definition confuses me because it makes me feel like the two particles are almost interchangeable, but I know they're not. Could anyone explain more clearly what the difference is, or give some examples of when to use each particle and why?