Помогите пожалуйста определить видовременные формы глагола и указать их инфинитив. Переводить не надо.. заранее спасибо
1. Almost a million people work in the City during the day. 2. That was long before the Romans came. 3. In the centre of London you will see famous buildings -Buckingham Palace, the Houses of Parliament, and others. 4. London began on two small patches of dry land in the middle of a marsh on the north bank of the Thames.

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1. work-  pres simp - to work. 2. was, came - past simp - to be, to come. 3. will see - future simp - to see. 4. began - past simp - to begin.