Subject + has + not + been + Ving Had + Subject + been + Ving
Subject + will + have + been + Ving
Subject + had + not + been + Ving
Нужно соединить
Past Perfect Continuous Question
Past Perfect Continuous Negative
Future Perfect Continuous Positive
Present Perfect Continuous Negative
Present Perfect Continuous Positive
1. Subject + has + not + been + Ving — Present Perfect Continuous Negative
2. Had + Subject + been + Ving — Past Perfect Continuous Question
3. Subject + will + have + been + Ving — Future Perfect Continuous Positive
4. Subject + had + not + been + Ving — Past Perfect Continuous Negative