Bhfuil is a special form of tá that's only used after certain words, such as an. Without the words that trigger this change, you would just have tá.
The other thing is that you need an .. ? to form a question. You can't just say tá cáca agat? and change your tone to voice to make a question, as in English. You need to do an + tá cáca agat = an bhfuil cáca agat?.
An bhfuil duine ar bith ábalta cabhrú liom Béarla cheart a chuir ar seo a leannas:
Dá mbá rud é ná raibh rath ar an sladmhargadh seo, is ar éigean gurbh fhiú na doirse bheith ar oscailt againn.
Here's what I think. IF THIS BARGAIN WAS NOT A SUCCESS, IT WOULDN'T BE WORTH US HAVING THE DOORS OPEN.
An é sin ceart????