If you’ve been learning Hebrew, you’ve probably noticed that the number “two” behaves a little differently – because it actually has four different forms, depending on gender and on whether it’s counting a noun or standing alone.

The best way to explain it is by showing some examples:

Rule 1: שני vs. שתי (before a noun)

When the number comes right before a noun, it agrees with that noun’s gender.

• Masculine noun → שני (שני ספרים – two books)
• Feminine noun → שתי (שתי חברות – two friends)

Rule 2: שניים vs. שתיים (standing alone)

When the number stands on its own, without a noun right after it, it takes a slightly different form.

• “כמה ספרים קנית – How many books (masculine in Hebrew) did you read?” – “שניים.”
• “כמה חולצות קנית – How many shirts (feminine in Hebrew) did you buy?” – “שתיים.”

Same logic, same genders, just a different shape because there’s no noun attached.

Rule 3: The dual form – the exception that trips everyone up

Here’s where it gets interesting. Some time-related words don’t use “two” at all. Instead, Hebrew has a special dual form:

• Not “two years” → שנתיים
• Not “two hours” → שעתיים
• Not “two weeks” → שבועיים
• Not “two months” → חודשיים
• Not “two days” → יומיים
• Not “two times” → פעמיים

But be careful – this isn’t a universal rule. Plenty of words simply don’t have a dual form, and you go back to the regular שני/שתי pattern:

• “Two minutes” is still שתי דקות
• “Two shirts” is still שתי חולצות

The only way to know which words take the dual form is exposure.

Try it yourself

I built a short interactive quiz to help you practice all three patterns. Pick one topic, a few, or all of them, and go through the questions one at a time – tap the word you think is correct and get instant feedback.

Good luck!