1) of
2) like having
3) by
4) about
5) in
6) at
7) with
С помощью вспомогательного глагола TO BE. Глагол to be имеет 3 формы - am, is, are. А в конце смыслового глагола добавляем частичку ing.
Example Present Simple - I go to school
Present Continuous - I am going to school
Pres. Simp. He eats biscuits.
Pres. Cont. - He is eating biscuits.
Pres Simp.- We drink coffee
Pres Cont. - We are drinking coffee
Was coping,were describing,were cleaning,was waiting,were skiing,were skating,was having,was getting ,were decorating,were feeding,were making.