The future perfect progressive tense is typically used with two time expressions: one specifying a time in the future and one stating the length of the activity. For example: By six o'clock, John will have been baking a cake for an hour. ("By six o'clock" specifies a time in the future. "For an hour" tells us the length of the activity.)The simple present tense is typically used for the following four general cases: To express facts, general statements of truth, and common-sense ideas that everybody knows. To state habits, customs, and events that happen periodically. To describe future plans and events. To tell jokes, stories, and relate sporting events in real-time. Using the future tense after the conjunctions when, before, after, as soon as, till, until, while and expressions the moment, the day, by the time is a common mistake that many foreigners make. It is important to remember that we should use the present, not the future tense in future time clauses. When we mix past tenses all together, it can be challenging to identify which one we have to use. However, there are ways to make it simpler, such as using words or phrases known as time expressions. These past tense expressions help us express actions that happened in the past as well as those that are already completed.
The auxiliary verbs in present continuous tense are “ am, is, are “. We always add “ -ing ” at the end of the verbs in present continuous tense. They are swimming. I am reading a book. He is playing football. Lucy is going home. Ali is helping his father.
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