Inverted Conditionals
Review od adverbs
Future Perfect
Future Perfect Progressive
Perfect or Progressive?
100

A grid system will work better if public transit is a priority.

Should public transit be a priority, a grid system will work better.

100

The streets in this town ________ need to be repaired. (adverb of indefinite frequency)

Answers may vary.

100

By 2050, human health _______ a lot. (improve)

will have improved

100

By next year, she ________ here for 10 years. (live)

will have been living

100

By the end of this decade, I ________ two more foreign languages. (learn)

will have learned

200

It would be easier to navigate our city if we had a grid system.

Were we to have a grid system, it would be easier to navigate our city

200

The heating filters need to be replaced ______ they are too old. (adverb of purpose)

because

200

Many animal species ________ within the next 100 years. (disappear)

will have disappeared

200

At 4:00, he _______ tennis for 90 minutes. (play)

will have been playing

200

At the end of this term, we __________ English for 12 weeks. (study)

will have been studying

300

Many cities would build a subway system if it were affordable. 

Were it affordable, many cities would build a subway system.

300

We have ________ approved the design of the new school. (adverb of definite frequency)

already

300

During my lifetime, doctors __________ most diseases. (cure)

will have cured

300

When Tom finishes the housework, he ________ for two hours. (clean)

will have been cleaning

300

By the 22nd century, the population _________ to dangerous levels. (increase)

will have increased

400

If the pedestrians had known about the construction, they would have taken a different route.

Had the pedestrians known about the construction, they would have taken a different route.

400

Some buildings are constructed ________ and have problems later. (adverb of manner)

hastily

400

By next year, scientists _______ an exciting new discovery. (make)

will have made

400

By 6 p.m., they ________ for the play for an hour. (practice)

will have been practicing

400

When the store finally opens, we __________ here for two hours. (wait)

will have been waiting

500

If you had called the city planning office, they would have told you what forms you need.

Had you called the city planning office, they would have told you what forms you need. 

500

Push the stones down ________ to make sure they stay in place.

firmly

500

By 2060, robots _________ the place of human beings in many jobs. (take)

will have taken

500

By the time she comes back from New Zealand, she _________ in London for 10 years. (not live)

will not have been living

500

How long _______ you _______ here by the time you retire? (work)

How long will you have been working here by the time you retire?

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