1-Map Comparison
2-Past vs Present Map
Tenses : Past Simple + Present Perfect / Present Simple
3-Present vs Future Map
Tenses : Past Simple + will be / is planned to / is expected to
4-Past vs Past
Tenses : past prefect +used to
6-Development Map
added +demolished+ expanded +relocated
7-Single Map Description
8-Three Maps (Past → Present → Future)
9- Maps with No Time Mentioned
before and after +previously / currently