Combining have been and were in this way is perfectly acceptable here, Umed. Often, in language use, deciding whether to use the present perfect or the past simple depends on your perspective on ...

Practice with simple constructions: "Students study grammar," "Teachers explain concepts," "Practice improves skills." Once this feels natural, gradually add modifiers and clauses.

Improve your grammar with easy 6 Minute Grammar, our grammar series for beginner level learners. On this page you'll find a range of easy grammar programmes to boost your grammar skills and links ...