"The policeman chased after Fred" is active voice.
"The police arrested me for loitering," is in the active voice. A passive version of this might be, "I was arrested by the police for loitering."
Passive voice
If the subject of a sentence is the Doer of the action, the verb is in active voice.If the subject is the Receiver of the action, the verb is in passive voice.I closed the door. (Active Voice)The door was closed at night. (Passive Voice).
It is passive voice.
No. "You had a good time" is active voice. Subject+verb+object=active voice. "A good time was had by you" is passive voice. Object+form of be+past participle+subject=passive voice.
In active sentences the subject or actor (the doer of the action of the verb) comes at the before the verb eg: The dog chased the cat. In this sentence the dog is the doer of the action 'chased'. Passive sentences allow us to put some thing else that is not the subject in the position of the subject eg: The cat was chased (by the mouse). The actor/agent 'by the mouse' - can be left out
This is not an active sentence so it cannot be changed to a passive sentence. Active sentences have a subject and a verb. eg The dog chased the cat. As a passive sentence -- The cat was chased.
"The police arrested me for loitering," is in the active voice. A passive version of this might be, "I was arrested by the police for loitering."
If you know the agent /doer of the action then the agent becomes the subject of the active sentence eg passive - The cat was chased by the dog (by the dog) tells us the dog is the agent or doer of the verb this becomes the subject. active - The dog chased the cat. If you don't know the agent of the passive sentence then you have to put someone or something as the subject. passive - The cat was chased. active - Something chased the cat.
In active voice, the subject performs the action denoted by the verb (e.g., "The dog chased the cat"). In passive voice, the subject receives the action denoted by the verb, with the object of the active sentence becoming the subject of the passive sentence (e.g., "The cat was chased by the dog").
The active and passive voices are used to show what receives or initiates the action in a sentence. With a passive voice, the subject receives the action: "The glass was knocked off the table." In the active voice, the subject initiates the action: "I knocked the glass off the table." The passive voice is often criticized as a way of de-emphasizing the actor, but it is useful, particularly if the actor is unknown, or you.
In active voice, the subject of the sentence performs the action, while in passive voice, the subject receives the action. For example, in active voice "The cat chased the mouse," the cat is the subject performing the action. In passive voice, the sentence would be "The mouse was chased by the cat," where the mouse is the subject receiving the action.
The passive voice of "the cat chased the bird" would be "the bird was chased by the cat." In the passive voice, the subject of the sentence receives the action rather than performing it. The passive voice is formed by using a form of "to be" (in this case, "was") followed by the past participle of the main verb ("chased").
Active sentences are subject + verb + object. The show the doer (subject ) of the verb.eg The dog chased the cat.Passive sentences are not s + v+ o.eg The cat was chased. (past simple passive)Passive sentences have the verb form - be+past participle eg was chasedAnother example The cake has been eaten. (present perfect passive).If you want to show who did the action in a passive sentence then add - by+noun or noun phrase.eg The cat was chased by the dog.
Active voice: I took the cake. or: I made a mistake.Passive voice: The cake was taken. or: A mistake was made.When the verb takes the action from the subject (the doer) and passes on to the object (the receiver), the verb is said to be in Active voice.I helped my friend.When the subject receives the action, the subject is the receiver of the action, the verb is said to be in Passive Voice.My friend was helped (by me).It better to use active voice if the Doer of the action is known or mentioned.
The simplest sentences are in the active voice: they follow the pattern subject-verb-object, such as "Jack kissed Jill". Jack, the actor in the sentence, is the one doing the kissing, and he is the subject of the sentence. But in the sentence "Jill was kissed by Jack", Jack is still the actor doing the kissing but it is now Jill, the passive person, the person receiving the kiss, who is the subject of the sentence, and Jack is relegated to a prepositional phrase. If the actor is the subject, it is active voice, if the passive person is the subject, it is passive voice. But English speakers recognize the passive form by the verb combination--the verb "to be" is inserted before the past participle and the tense of the verb "to be" governs the tense of the passive verb.
An active sentence has the word order -- subject + verb + object. In an active sentence you can see who does the action. eg -- The dog chased the cat. (the dog does the action)In a passive sentence the word order is -- object + verb. The person or thing that does the action (agent) is not necessarily given eg -- The cat was chasedIf you want to say who or what did the action in a passive sentence you add it at the end -- by + noun/noun phraseeg -- The cat was chased by the dog. or The cat was chased by a pack of dogsPassive sentences are often used if you a writing about a process, where who or what does the action is not important. eg Tea is grown in China. It is processed and is packed in boxes.Or other sentences where the agent is not known. eg The Mona Lisa was painted around 1503.Or if the agent is the most important piece of information. eg The painting was painted by Van GoghA passive sentence verb has the form -- be + past participle eg was chased, were chased, is being chased, had been chasedetc