Page 66 - Demo

65 Mohammad Mahfooz HussainSyntax:Active How many + Plural Noun (Subject) + Main Verb + Object?Passive By how many + Plural Noun (Agent) + Auxiliary Verb + New Subject (Object) + Main Verb (3rd form)?Now understand this step-wise:Active Voice: How many viruses corrupted the database?Step 1: Create a standard declarative sentence using a placeholder.%u2192 Several viruses corrupted the database.Step 2: Change this normal sentence into the passive voice. The new subject is %u201cdatabase,%u201d which is singular.%u2192 The database was corrupted by several viruses.Step 3: Make it an interrogative sentence by bringing the auxiliary verb to the front.%u2192 Was the database corrupted by several viruses?Step 4: Swap the temporary placeholder back to the original question phrase.%u2192 Was the database corrupted by how many viruses?Step 5: Pull the entire phrase, including its preposition %u201cby%u201d, to the front of the sentence.The final passive form: By how many viruses was the database corrupted?