do number four in roman numerals sometimes can also be written as IIII instead of IV

In traditional Roman numerals, the number four is correctly written as "IV" and not as "IIII". The numeral "I" stands for one, and when you want to represent four, you actually place the smaller value before the larger to subtract it. So, "V" (five) minus "I" (one) equals "IV". The representation "IIII" is often seen as an error or a misunderstanding of how Roman numerals work. However, historically, there were variations in how numerals were written, sometimes due to different regional practices or scribal errors. But in standardized Roman numeral usage, "IIII" is not correct for the number four. In summary: - Correct: IV - Incorrect or non-standard: IIII