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TEFL Videos - The Future Tenses - Future Perfect Continuous - Structure, Usages and Teaching Ideas
"Now let's take a look at the future perfect continuous tense. This tense is used to talk about how long an action had been taking place up until a certain point in the future. Our examples are for the positive sentence we have our subject "you" and three auxiliary verbs "will have been" and then our main verb in the present participle form again that's the verb plus "ing". For our negative form, again, we're simply inserting the word "not" between "will" and "have" and to ask our question, we invert "will" with the subject here we're using "you" and we come up with a question "Will you have been watching?" and the rest of our sentence. As with the other future tenses the word will can be substituted for other modal verbs. These modal verbs would indicate very levels of certainty for the future. So again we could substitute "may" or "might" for the word "will". Also with the future tenses the "will" and "not" will contract into its contracted form of "won't". I've mentioned earlier the usage for the future perfect continuous tense is to show how long an action will have happened by a future time. Our example sentence reads "By the end of this year, I'll have been living in London for 20 years." So I'm talking about a point in the future "by the end of this year" and how long we actually will have been happening by that time. "By the end of this year, I'll have been living in London for 20 years." A teaching idea for the future perfect continuous tense includes a survey. Here we want to be able to find out the duration of an activity at a certain point in time for the future. A sample question might be "How long will you have been learning English for by the end of the year?" At the end of the activity, we should be able to identify who will have been learning English for the longest and who will have been learning for the shortest amount of time."