Klingon numbers can act as nouns, standing on their own as subjects or objects, or modifying another noun directly.

Numbers as Standalone Nouns

• mulegh cha' – Two (of them) see me.
• wa' yIHoH – Kill one (of them)! (The prefix yI- already means a singular object; wa' adds emphasis.)

Numbers Modifying Nouns (Counting)

When numbers are counting objects, they come before the noun they describe. Plural suffixes like -pu' or -mey aren't required when using a number:

• loS puqpu' or loS puq – four children
• vaghmaH yuQmey or vaghmaH yuQ – fifty planets

Numbering Objects

When assigning a number to something (like labeling), the number follows the noun:

• DuS wa' – torpedo tube number 1

Ordinal Numbers (first, second, third…)

Ordinal numbers are created by adding -DIch to regular numbers, and they follow the noun:

• wa'DIch – first
• cha'DIch – second
• HutDIch – ninth
• meb cha'DIch – second guest

Repeating Actions (once, twice…)

Add the suffix -logh to show how many times an action occurs. These words function as adverbials, occuring at the beginning of the sentence:

• wa'logh – once
• cha'logh – twice
• Hutlogh – nine times
• wejmaH Sochlogh – thirty seven times

To say that an action has happened "many times" or "repeatedly", use the word pIj ("often"). For extra emphasis, repeat the verb using 'ej ("and") and -qa' ("again"):

• qagh vISoppu' 'ej vISopqa'pu' 'ej vISopqa'pu' – I've eaten gagh many times. (I've eaten gagh and I've eaten it again and I've eaten it again)

To say that an action has been repeated a number of times during a group of attempts use pe''egh "cut onself" and nID "try":

• loSlogh pe''egh; vaghlogh nID – tried four out of five times (cut oneself four times; tried five times)

This construction is used even if the person stopped after the fourth try and didn't try a fifth time.