Verbs can be classified as regular verbs and irregular verbs.
To form simple past tense verbs from simple present tense verbs, just add "-d" or "-ed" to the verb.
These verbs are regular verbs because they have "-d" or "-ed" endings as a regular feature in the past tense.
They do not end in "-d" or "-ed". In some verbs there is a change in spellings in the past tense.
|Simple Present Tense||Simple Past Tense|
Some verbs remain the same in the past tense as they are in the present tense.
Examples: put, let, cut