Which form of verb is used in simple present, past and future
Present,past and future continuous.
Present, past and future perfect.
Present, past and future perfect continuous

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Please go through the study materials provided on our website to get the solution of this query. 
However, the following points can help you getting an overall idea about this topic:
For simple present, the root form of the verb is used or by adding "s" or "es" at the end when the subject is third-person singular.
For example, I eat mango.
She goes to school.
In simple past, the past form of the verb is used.
For example, I ate mango.
In simple future, the base form is followed by an auxiliary verb "will" or "shall".
For example, I will eat mango.
In present continuous, the present tense of the "be" verb and present participle (verb-ing) of the base form is used.
For example, I am eating mango.

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