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[1]
1. My grandmother usually (teaches) flower arrangement on Sunday.
※日頃の習慣:現在形
2. It (is going to) rain. ※be going to ~:確実性が高い
3. My brother (went) to Costa Rica [two years ago].
※two years ago → went(過去形)
4. It (has been raining) heavily [for three hours].
※for three hours → has been raining:現在完了進行形-継続
[2]
1. When I came(過去形) back home yesterday, my mother was talking(過去進行形) with her friend over a cup of coffee.
2. Keiko has been(現在完了:継続) absent for three days.
3. Masatoshi is going to take part in the summer camp. ※be going to ~:計画性
4. When my turn came(過去形), the tickets had already sold(過去完了:完了) out.
5. Nobody had eaten(過去完了:経験) ten plates of gyoza at the restaurant until then(その時:過去)
[3]
1. [Have you finished your homework yet]? <現在完了:完了>
2. [He will play in the soccer game] tomorrow.
3. What is [the most impressive movie you have ever seen]? <現在完了:経験>
[4]
1. (Have) you (ever) (seen) a platypus? <現在完了:経験>
2. My sister (has) (gone) shopping with her friend. <現在完了:結果>
3. He (had) (never) (studied) French before he visited Paris. <過去完了:経験>
参考にしてください。