✨ ベストアンサー ✨
仮定法のif節の動詞と主節の助動詞は過去形なので
(1)If I had an umbrella,I could go home now.
(2)If Koji studyed English hard,he would pass the exam.
(1)If he had a mobile phone,I would send e-mails to him.
(2)What would you do if you had a robot?
(3)If I learned the tea ceremony,I could enjoy tea with my mom.
だと思います!!
ご丁寧に分かりやすくありがとうございます(;Д;)(;Д;)参考にさせていただきます❕🙏🏻✨