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2. I know that a verb has three different forms.
a. The past form has –ed in the end of the word, for example:
worked, walked, studied, played, and so on.
b. Some past verbs have different vowels/sounds from those in the present forms, for example:
went, came, got, read and so on.
c. Some past verbs have totally different forms from the present forms, for example:
was, were, caught, ate, went and so on.
3. I know that.
a. We use the past form for:
