The Shahada can be declared as follows :
“ASH-HADU ANLA ELAHA ILLA-ALLAH WA ASH-HADU ANNA MOHAMMADAN RASUL-ALLAH”.
The English translation is :
“I bear witness that there is no deity (none truly to be worshipped) but, Allah, and I bear witness that Mohammad is the messenger of Allah.”
From How to become a Muslim
English dictionary definition of shahada (also spelled shahadah):
1. (Islam) the Islamic declaration of faith, repeated daily by Muslims
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