The concept of trinity does not exist in the Bible. See the references below?   

thanks for this....

Kindly read Genesis - the first book of the Holy Bible with an open mind - chapter 1:26 fully and tell me who these " US " are ?

Oh boy, you are again making the mistakes which so many Muslims have made here in Mylot i.e taking verses to prove your points... get into the theology of Christian faith. And please if you want to learn about Christianity do not do so in your Islamic seminary, come to Christian seminary and learn Christian theology from Christians... if you learn from Islamic theologians you will never get the truth, because the truth is not understood... and so you get the distorted teaching. Pleaseeeeee do not distort Christian theology. I hate it when Christians distort Islamic teaching, and I hate it when Muslims distort Christian theology.

My exact reason why I do NOT read any other version except KJV, cause these other translations distort the Word of God or omit it to suit there lifestyle.
One should NOT omit scriptures from the Holy Bible. There is a punishment for that written in the good book also.
The trinity does in fact exist and is The Father, The Son & The Holy Ghost. Yes those three are one. In fact they are inseperable, you cannot have one without the other.

My brother, peace be upon you. Jesus said, "Your father Abraham rejoiced to see my day: and he saw it, and was glad". Then said the Jews unto him, Thou art not yet fifty years old, and hast thou seen Abraham? Jesus said unto them, "Verily, verily, I say unto you, Before Abraham Abraham was, I am." Then they took up stones to cast at him... John 8 vs 56-59; 53

Jesus said this in response to certain Jews' question, "Art thou greater than our father Abraham, which is dead..." But, where else did He Jesus say I AM?

Answer - And Moses said unto God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and they shal say unto me, What is his mame? what shall I say unto them? And god said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of ISrael, I AM hath sent me unto you. Exodus 3 v 14. Another text is this: Philip saith unto him, Lord, show us the Father, and it sufficeth us. Jesus answered unto him, "Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, show us the Father? Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, hedoeth the works. Believ me that I am in the father, and the Father in me: or else believe me for the very works sake." John 14 v 8-11