Kaf is pronounced as "k" in kitten.
Khaf is pronounced as "ch" in bach. It has a breathy "hk" sound.
Kaf sofit is pronounced as "ch" in bach.
Kaf is transliterated "k".
Khaf is usually as transliterated "kh" [although there is some variation in practices].
Khaf sofit is usually transliterated as "kh".
(yes) is transliterated ken. Syllabification. ken.
(I) is transliterated anoki or anokhi. Syllabification. a-no-ki.
(How are you fem.) is transliterated ma shlomekh . Syllabification. ma shlo-mekh .
(How are you mas.) is transliterated ma shlomkha . Syllabification. ma shlom-kha.
The letter kaf may be either a prefix and a suffix.
As a prefix
as a suffix means "like" or "as". Ki is an inseparable preposition—it is always attached to a word—and usually takes a sh'va. In some grammatical situations it can take other vowels. [The rules for attaching inseparable prepositions to a noun are available HERE.]
Example. (like a king), transliterated, kemelekh, Syllabication. keme-lekh.
As a suffix
The suffix form is always the kaf sofit and adds a 1st person possessive ending to a noun giving the meaning "you" or "your" to a word. Kaf as a suffix is usually accompanied by a kamats or a sh'va which indicate masculine or feminine gender.
(your love, mas. s.) is transliterated, ahavtekha. Syllabication. ʾa-hav-te-kha.
(your name, fem. s.) is transliterated, sh'mekh. Syllabication. sh'mekh.
Gematria. Kaf is equal to 20.