The Tenses Of Past Future Perfect Continuous

Explanation
The correct formula for the past future perfect continuous tense is "S+ would+have been+ Ving." This tense is used to describe an ongoing action that will have been completed in the future before another action or point in time.

Explanation
The correct answer is "Driving" because the phrase "I would have been" indicates a hypothetical situation in the past. In this case, it suggests that the person is talking about what they would have been doing at a specific time in the past. Since the verb "drive" needs to be in the present participle form to match the tense and structure of the sentence, "Driving" is the correct choice.

Explanation
The correct answer is "would" because the sentence is in the past tense and is expressing a hypothetical condition. The use of "if" indicates that the construction of the house did not actually finish, so the correct verb form to use is "would" to show the unreal or hypothetical outcome of them living in the house if it had been completed.

Explanation
The correct answer is "have been". This is because the sentence is discussing a past action or state that continued up until the present. "Have been" is the present perfect tense of the verb "to be" and is used to indicate an ongoing action or state that started in the past and is still relevant in the present. In this case, it suggests that the person has been using a certain mode of transportation for a period of time leading up to the present moment.

Explanation
The question is asking about the past action of washing clothes. The use of "have been" indicates that the action of washing clothes started in the past and is still ongoing. This suggests that the speaker is referring to a continuous or habitual action that has been happening over a period of time. Therefore, "have been" is the correct answer.