Exercise 1: Choose the correct form 1. Nina ___ English for 2 years. (has learned / has been learning) 2. The children ___ cartoons for 2 hours. (have watched / have been watching) 3. We ___ a holiday for 5 years. (haven't had / haven't been having) 4. David ___ in his studio since 10 o'clock. (has painted / has been painting) 5. Mary and Sam ___ stamps for 3 years. (have collected / have been collecting)

Exercise 1: Choose the correct form

• 1. Nina has been learning English for 2 years. (Present Perfect Continuous is used for actions that started in the past and continue to the present, with emphasis on duration.)
• 2. The children have been watching cartoons for 2 hours. (Present Perfect Continuous is used here to emphasize the duration of the action.)
• 3. We haven't had a holiday for 5 years. (Present Perfect Simple is used for a completed action or a state that has lasted for a period of time up to now.)
• 4. David has been painting in his studio since 10 o'clock. (Present Perfect Continuous is used to emphasize the ongoing nature of the action since a specific time.)
• 5. Mary and Sam have collected stamps for 3 years. (Present Perfect Simple can be used here to indicate a completed action that has had a result or state over a period of time, but Present Perfect Continuous 'have been collecting' would also be acceptable to emphasize the ongoing activity.)