Japanese is a highly inflected language, which means that the form of words changes depending on their grammatical role in a sentence. It is also a mora-timed language, which means that each mora (a syllable or part of a syllable) takes the same amount of time to pronounce.
ቋንቋውን ይቀይሩ
Amharic - ቋንቋውን ይቀይሩ

How to Use Phonetic Keyboard - See example below

Use combinations of english letter constants and vowels to form the amharic pronounciation. Note the use of upper case E and W to write "ሜ" and "ሟ", respectively. Press Esc to toggle writing between English and Amharic Keyboard. See the example table below to form the "መ" variations.

 euiaE oW
m

How to Use Amharic BHN Keyboard - See example below

When you click one of the root characters, all the variations will show up on the keyboard. You can then type the variation you want.