How Do You Say Believe In Arabic?

In the sense of faith:
Verb In the past: Amana آمَنَ the first A being slightly elongated
Verb In the present: Yu'minu يُؤمِنُ
The noun is: Iman (faith), with the I and the a slightly elongated

In the sense of "I think that":
Verb in the past: Dhanna ظَنَّ
Verb in the present: Yadhonnu يَظُنُّ
Noun: Dhannun ظَنٌّ