This is the 3954th most frequent Arabic word.
بدأوا
"بدأوا" means "They started/began."
Here, "بدأوا" means "they started," referring to children in a past action.
بدأوا الأطفال اللعب في الحديقة.
The children started playing in the garden.
In this sentence, "بدأوا" is used to denote the action of students starting their writing task, highlighting the beginning of an academic activity.
بدأوا الطلاب في كتابة أجوبتهم.
The students began writing their answers.
Within this context, "بدأوا" indicates the commencement of activity by the workers, initiating a construction project.