The present participle of verbs is a general rule with the past tense

Past participle conjugation filial piety rule: generally add ed after the original form of the verb; Verbs ending in e add d directly; Verbs ending with a consonant letter plus y should be changed from y to i and ed added; Words ending with a vowel letter plus y are directly added with ed. There are five rules for conjugation of verbs in the past tense and past participle, which are detailed as follows:

1. Generally, -ed is added after the original form of the verb.

e.g. look; looked；looked；call；called；called

Note: -ed is pronounced as [t] after a clear consonant phoneme, [d] after a voiced consonant, [d] after a vowel, and -ed is pronounced as [id] needed [ni:did] after [t], [d].

2. Verbs ending in -e are directly added with -d.

e.g. move; moved；moved；phone；phoned；phoned

3. Verbs ending with consonant letters plus y should be changed from y to i and then -ed.

Example: study; studied；studied

4. Words ending with vowel letters plus y are directly added with -ed.

e.g. play; played；played

5. For stressed closed syllable words with only one consonant letter at the end, double write the consonant letter and add -ed.

e.g. stop; stopped；stopped

Past participles are commonly used.

be(am,is,are) (是)was,were been

Begin began to begin

drink drank drunk

ring: rang rung

sing (singing) sang sung

The past tense and past participle of verbs are often determined by the ending of the verb, which can generally be divided into the following categories:

Verbs ending in "e", add"d"As its past tense and past participle, e.g. love (love) loved (past tense) loved.

For verbs ending in the consonant letter + y, change "y" to "i" and add "ed", e.g., carry (carry) carried (past tense) carried (past participle).

Verbs that end in an accented closed syllable and have only one consonant at the end of the sentence should be double-written with the last bright and slow consonant letter, and then add "ed", e.g., stop (stop) stopped (past tense) stopped (past participle).

Other verbs add "ed" to the ending, e.g. walked, walked, walked, walked.

Rule changes. It is common to add punching ed at the end of the word

Ending with the unpronounced letter e, only add d

End with a consonant letter plus y, change y to i and add ed

At the end of the stressed closed syllable, there is only one consonant word, and the double consonant letter is added ed