She has regularly done her homeworks so far.
The above placement of regularly doesn �t sound quite natural to me in this sentence. I would write:
She has always done her homework regularly so far.
She does her homework regularly.
She regularly does her homework in the evening, but sometimes she finishes it in the morning.
Where sometimes is placed depends on the meaning and context:
Sometimes I am late for school, but only when the bus is late.
She is sometimes late for English classes because the class before that is in another building. (It �s a long way to walk)
She is late sometimes, but not often.
She sometimes leaves early because she has regular medical appointments.