All standard varieties are based on the non-standardized spoken varieties of the Shtokavian dialect ( Ijekavian - varieties , including Ijekavian also Ikavian Shtokavian ) .
All standard varieties are based on the non-standard spoken varieties of the Shtokavian dialect ( Ijekavian varieties including , beside Ijekavian , also Ikavian Shtokavian ) .