To ensure that the jamo are composed into the correct hangeul character, it is important to press the space bar or a punctuation key before entering more Korean text.

In the same way, you may only enter those combinations of Latin script vowels (with 'y' and 'w') that are recognized by the Revised Romanization of Korean standard. So, for example, after an 's' has been entered showing the jamo ㅅ, entering a second 's' will convert the jamo to ㅆ (for 'ss'), but other consonants would be blocked since the two letters would not represent a valid jamo. Letter keys will be accepted if they can be combined with the uncomposed jamo, or blocked if not. Pressing a digit will select from the hanja displayed in the IME list (see below). Pressing any punctuation key, or Enter, will compose any pending jamo before the punctuation or new line is inserted.

The three jamo for 'guk' will be shown, still not yet combined in the document: The jamo for 'gu' will be seen (separately or combined): The jamo for 'g' will be added to the output: Press the space bar to combine the jamo as a single hangeul character. The jamo for 'han' will now be displayed, either separately or visually combined, but not yet combined in the document: Some browsers will combine them so that they appear as a single character, but the separate jamo will not yet be combined in the document. The two jamo for 'ha' will now be displayed. The jamo for 'h' will appear in the output window:

The following step-by-step example for entering hangeul shows what happens as each letter is typed:

Windows korean keyboard