English Tenses Poster (Present and Past)

I've made this simple poster in a form of a mind map, which should serve as a reminder of some key elements concerning present and past tenses. It doesn't contain detailed explanations, but rather some of the ''clues'' that should help students link suffixes, auxiliaries, usage and time expressions to each specific tense, and also help them differentiate between three aspects of present and past time. Hope it helps!