Chapter 5 : Present Perfect Continuous Tense

Present Perfect Continuous  Active & Passive Voice

Active Voice  S + V to have (have, has) + been + V1 ing He has been writing a letter to his friend for 3 hours.  Passive Voice S + V to have (have, has)+ been + being + V3 A letter has been being written (by him).

Present Perfect Continuous Negative Form Active & Passive Voice

Active Voice  S + V to have (have, has) + not + been + V1 ing He hasn't been writing a letter to his friend for 3 hours.  Passive Voice S + V to have (have, has) + not + been + being + V3 A letter hasn't been being written (by him).

Present Perfect Continuous Question Form Active & Passive Voice

Active Voice  V to have (have, has) + S + been + V1 ing? Has he  been writing a letter to his friend for 3 hours? Passive Voice V to have (have, has) + S + been + being + V3? Has a letter been being written (by him)?

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