Some extra exercises and quizzes to learn to use these two tenses in a correct way:
1. Present Perfect Continuous // Fill in the gaps (with answers)
2. Present Perfect or Present Perfect Continuous? -a Grammar lesson and exercises
3. Have a look at this presentation if you still have doubts:
Mostrando entradas con la etiqueta present perfect continuous. Mostrar todas las entradas
Mostrando entradas con la etiqueta present perfect continuous. Mostrar todas las entradas
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