Answer:
Old Major relates a dream that he had the previous night, of a world in which animals live without the tyranny of men: they are free, happy, well fed, and treated with dignity. He urges the animals to do everything they can to make this dream a reality and exhorts them to overthrow the humans who purport to own them.
An example of a sentence including the verb “begin” in the present perfect tense would be :
I have begun to study French.
Meaning I started studying French at some point in the past and It has effects on the present.
An example of a sentence including the verb “begin” in the past perfect tense would be:
She had begun to read well when she was 5 years old.
Meaning when she was 5 she could already read properly.
An example of a sentence including the verb “begin” in the future perfect tense would be:
By the time you arrive at the cinema, the movie will have begun.
Meaning you will miss the beginning of the movie because you will be late.