You may say 'Sugoku/Totemo oishii desu.'
You may say 少し日本語をしゃべるけど、上手じゃありません。 (sukoshi nihongo wo shaberu kedo, jouzu ja arimasen) which would translate into "I speak a little Japanese, but I am...
TOTEMO furui
You may say 'oishii' or 'umai.'
"Ko-hi- ga oishii desu" (pronounced: KOH-HEE gah oy-shee dess). コーヒーがおいしいです。
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