In romanji (english alphabet) it is "suki desu". Pronounced "s-oo-ki de-sue", but the oo and 'ue' is barely heard.
There are three common ways of saying this, 愛している (aishiteiru) 好き (suki) or 大好き (daisuki). The second and third would need objects to associate the "liking". 愛している...
'Fuhen no ai.'
愛する (aisuru) is the verb for "to love", though you may also say 大好き (daisuki, great fondness) to indicate strong attachment to something.
Ai no ki. [I-Know-key]