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SIMPLE. (‘he will work’)
1. %%habit in the future%%
2. %%future event we see as a fact (true future)%%.
3. %%predictions/forecasts%%
4. %%predict the present (deduction)%%
5. %%spontaneous reaction (decision on the spot)%%
6! %%offers, requests, firm intentions (modals)%%
7! %%time clauses and conditionals%%
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CONTINUOUS. (‘he will be working’)
1. ^^actions in progress in the future.^^
2. ^^comparing what we are doing now with what we’ll be doing in the fut.^^
3. ^^casual action as a part of the normal course of events^^
1. ^^plan/intention^^
2. ^^prediction based on opinion speaker^^
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PERFECT. (‘he will have worked’)
1. @@something will have been done by a certain point in the future. (action in period up to future moment)@@
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PERFECT CONTINUOUS. (‘he will have been working)
1. To look back from one point in the future at an activity in progress, emphasise the duration of it (period up to future moment, stress on duration)