To learn English Tenses in 3 easy steps:

1. Do not compare English tenses with tenses in your own language. This will not help you to use English tenses correctly. Instead...

2. Try to remember the key words or key situations that always go with the different tenses. In this way you will be correct 95% of the time, and as you see and hear examples of tenses in different contexts, you will develop a feeling for the correct tense.

3. Explanations in grammar books, and here in English.Web, will help you to recognise the key words or key situations - and that is all. Do not spend too much time and effort trying to understand explanations. Concentrate always on examples in context.