Introduction
Every sentence has a subject and a main verb.
Verbs describe what the subject is doing. To be able to show exactly what the subject does at any time, verbs have different forms and tenses.
In order to speak and write English correctly, you must learn the various verb forms and tenses.
Learning Hint:
To use verbs accurately, learn the standard verb forms and tenses. Memorize common irregular verb forms that do not follow standard forms.