Hello Abhishek, You Can Recover Your Coins If You Have Signed In With Google Account In Past. You Can Reinstall App And Sign In With Your Gmail. But If You Haven't Used This With Gmail Or Any Account In past You Are Not Able To Get Your Coins Back. KEEP LEARNING

Tenses Are Set Of Rules Of How We Can Make A Sentence Correctly While Describing Some Actions and Their Current States According To Time. Some Words Often Used In Sentences (Is,Am,Are/Was,Were/has,have/be/ 2nd,3rd And ing forms Of verbs) In Accordance With A Particular Time Period. Tenses Are Rules Which Specifies What Form Of A Verb And Helping Words Is To Be Used In A Sentence According To Time. 3 Types Of Tenses Are: Present, Past & Future. The Question You Asked Is How To Use Tenses Correctly ?? So My Friend Practice More And More Sentences Of Different Types And Observe What Forms Of Verbs And Helping Words(Helping Verbs) Are Used. Tenses Are Not Necessary To Speak English But At Start You Will Need To Use Coorect Tense To Make A Sentence But As You Become More And More Fluent In English You Needn't To Think What Type Of Tense It Is. Best Of Luck. Happy Journey.