how can l learn tenses

You should learn tense from Teacher/Hello English/ YouTube/Google.We all are here for helping you to learn English.

you should learn hello english lesson. and you have to practise .

better way to learn tenses is use this app regularly/add as a part of your daily routines. if you face any difficulty in learning tenses you can ask your doubts here. here each and every person has come like you, we also faced the same feeling like you do.