Предложение поставить во времена Present, Past, Future Indefinite; Present, Past, Future Continuous; Present, Past, Future Perfect; Present Prefect Continuous. Само предложение The tools and analyses of microeconomics provide a common ground.
The tools and analysis of microeconomics provided a common ground. ( past indefinite) ..... will provide.... ( future indefinite) ; are providing... ( present continuous) were providing.... ( past continuous) will be providing.... ( future continuous) have provided... ( present perfect) had provided... ( past perfect) will have provided... ( future perfect) have been providing... (present perfect continuous)