Thepast perfect continuous tense is one of the most complex verb tenses that use had been with the present participle form of the verb. You can also change the second clause into passive form. For example: The new recipe had been being tried by the chef until it was included on the menu by the owner.
Passivevoice - active to passive exercise (present continuous). Fill in the spaces with words to complete the passive form of each present continuous sentence. The agent preposition "by" is not required. Example: They are discussing the case right now. Answer: The case is being discussed right now.
Pasttense: The teacher went to see her doctor when she had a headache. Present tense: The teacher goes to see her doctor when she has a headache. Future tense: The teacher will go see her doctor when she will have a headache. 240 Examples of Tenses. These mixed sentences of all tenses will help you understand the verb tense. Each tense contains 20 example sentences.
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