When is the past participle used in English?

Use the past tense in English: it is used in the simple past tense. Example: I? went? To the movies last week. I went to see a movie last week. Here "went" is the past tense of "go".

past participle in English: used in passive voice and perfect tense. Example:

1. The book was? translated? Into many languages. This book has been translated into many languages. (passive voice, tense is simple past tense)

2. I have? been? To the UK twice. I have been to England twice. (present perfect tense)

In general, the verb past tense and the past participle have the same deformation, that is, -ed is added after the verb. Such as: look-looked-looked；; help - helped - helped； ask - asked - asked。

but there will be many exceptions, such as: go-went-gone；; become - became - become； break - broke - broken； Do-did-done, etc.

Extended information:

Irregular changes of verbs in past tense and past participle: Many verbs in English do not follow some of the rules mentioned above, but have their own special forms, which are called irregular changes. These verbs are also called irregular verbs. In fact, the irregular changes of verbs also have certain rules to follow, which can be roughly divided into four categories:

1. AAA type: verb prototype, past tense and past participle homograph.

2. ABB type: past tense and past participle are homographs.

3. ABA type: the prototype of the verb is the same as the past participle.

4. ABC type: the verb prototype, past tense and past participle are all different.