are = you, they, we
is = he, she, it
do = I, you, they, we
does = he, she, it
هرجا are, is, am اومد، بدون جملت حال استمراریه.. یعنی فعلت ing میگیره
do, doea
معمولا برای سوال کردن و حال ساده یا منفیکردن حال ساده به کار میره.
Do you like salad ? Yes, I do.
Does she like apple ? Ne,She doesn't.
یا مثلا یکی راجب عادت های روزانهش صحبت میکنه..
Sara wears black T-shirt, every day.
Sara doesn't wear red T-shirt, every day.