Помогите пожалуйста!!!!определите в них видо - временные формы глагола и укажите их инфинитив;

1. There were two universities in England in the early thir teenth century – these were Oxford and Cambridge. - were, were - Past Simple; to be - the Infinitive.
2. Many great men studied at Cambridge and among them was
Newton, the world – known English scientist and mathematician. - studied - Past Simple; to study - the Infinitive; was - Past Simple, to be - the Infinitive.
3. The students of Cambridge University don’t attend all lectures. - don't attend - Present Simple (negative), to attend - the Infinitive.
4. For a long time London University had no library. - had - Past Simple, to have - the Infinitive.
5. The students will take an active part in the preparation for conference. - will take (an active part) - Future Simple; to take part - the Infinitive.
6. The lecturer told the students about the illegal (нелегальный) publication of Iskra in 1902 - told - Past Simple, to tell - the Infinitive.

were -past simple -( inf.)-to be
studied - past simple - to study
was - past s.- to be
don't - do not - present simple - to do
had - past simple - to have
will take - future simple - to take
told - past s. - to tell