President Nixon's visit to China
Homosexuality began wherever life on Earth began.Homosexuality began with the dawn of animal life on Earth.
Began is the past tense of begin.
It began when hunter/gathers began to form villages and communities. That was around 20,000 years ago.
Begin is the present tense of began.
Strictly speaking, "began" does not have a past participle. The verb is "begin," not "began." The past participle of "begin" is "begun." "Began" is just the past tense of the verb "begin."
President Nixon's visit to China
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War
It began the process of ending the Cold War