Так, ну в общем, если не надо было придумывать развёрнутые предложения, то получается так:
1. ----- / I usually get lost in the forest / I'll get lost in the forest tomorrow / I'm getting lost in the forest now
2. She went to the gym yesterday / She usually goes to the gym / ----- / She is going to the gym now
3. He got up early yesterday / ----- / He will get up early tomorrow / He is getting up now (слово early не добавляю, согласись, будет тупо звучать: "он прямо сейчас встаёт рано".
4. It didn't rain yesterday / It doesn't usually rain / It won't rain tomorrow / --------
5. We didn't go to school on foot yesterday / ------ / We won't go to school on foot tomorrow / We are not going to school on foot now
6. ----- / We usually help our parents about the house / We will help our parents about the house tomorrow / We are helping our parents about the house now