Here's a breakdown:
* -ed endings: These are the most common. Examples include:
* walk - walked
* play - played
* jump - jumped
* -t endings: This ending is only used for verbs whose base form ends in a consonant followed by a "y". Examples include:
* try - tried
* carry - carried
* cry - cried
Important Note: Not all verbs follow this pattern. Verbs that don't are called irregular verbs. These verbs have unique past tense forms that must be memorized. Examples include:
* go - went
* see - saw
* eat - ate