Pronunciation: [kɹˈe͡ɪzɪz] (IPA)
Correct spelling for the English word "crases" is [kɹˈe͡ɪzɪz], [kɹˈeɪzɪz], [k_ɹ_ˈeɪ_z_ɪ_z] (IPA phonetic alphabet).
Correct spelling for crases