Определить видо-временнную форму глагола и указать их инфинитив 1)One of Tallinn's farmacies

1) One of Tallinn's farmacies functions (pres simp - to function) for more than 550 years. 2) The construction of the Tallin Town Hall began (past simp - to begin) in the first decades of the 14th century. 3) In two years my brother will become (fut simp - to become) an engineer.