Edit

ـَي

So what if we want to write the "a" sound in "fate". The fatHa alone will not do that job. In reality the "a" sound in fate, includes a "y" sound in it. So a fatHa followed by a yaa with no vowel on it will make the "a" sound in "fate". We transliterate this with "ai". Examples:

كَي (pronounced: kai ) Sounds exactly like the letter "k"


تـَي (pronounced: tai )


وَي (pronounced: wai ) Sounds exactly like the word "way"


مَي (pronounced: mai ) Sounds exactly like the word "may"


سَي (pronounced: sai ) Sounds exactly like the word "say"




Edit

=More examples

مَيْكَي (pronounced: mai-kai )


تـَيْرَي (pronounced: tai-rai )


يَي (pronounced: yai )


يـِي (pronounced: yee )


تـَي (pronounced: tai )