Mary gulps down a cup of tea quickly.

I am not sure whether use present or past tense. Please help to check. Thanks & regards,

If you are narrating what is happening now, it is correct. If not, "gulped" should be used.

That depends upon the conquest. If it happens generally or now, use the present tense. If it happened in the past, use the past tense.

When trying to determine whether to use the present or past tense, you should consider the context of the sentence and the timeframe in which the action took place.

In the sentence you provided, "Mary gulps down a cup of tea quickly," the action of Mary gulping down the tea is described in the present tense. This suggests that the action is happening in the current moment or as a general statement about Mary's actions.

However, if you are referring to a specific event that has already happened in the past, you would use the past tense. For example, if you wanted to describe an event that occurred in the past, you could say, "Mary gulped down a cup of tea quickly."

In summary, if you are talking about a general or current action, use the present tense. If you are referring to a specific event that already happened in the past, use the past tense.