Future Perfect Continuous Keywords

Tomorrow, next week, soon

At 3 tomorrow, at this time tomorrow

By the end of this year, by this time tomorrow,in two years time, in July next year, in anotherfive months

for, by the time

Every day, usually, always, sometimes, rarely

Now, at the moment, currently, this month, thisyear, tomorrow

Just, already, yet, ever, never, once, twice,several times, always, by now, up to now; sofar, before, for an hour, for a week, for a longtime, for five years, for years, in years, since,lately, recently

for an hour, for a week, for a long time, for fiveyears, for years,  in years,  all day, all morning,since, how long

Yesterday, ago, 2 weeks ago, last week, a longtime ago

While, when, at 5 o’clock yesterday

by the time, before,  after,  when (in themeanings 'by the time; after'), before lastweek,  by two o'clock yesterday.

for, since, how long, before, after