YOU SAID:

i would fancy a cup of tea

INTO JAPANESE

お茶を一杯飲みたいです

BACK INTO ENGLISH

I'd like to have a cup of tea

INTO JAPANESE

お茶を飲みたいのですが

BACK INTO ENGLISH

I'd like to drink tea.

INTO JAPANESE

お茶を飲みたいです。

BACK INTO ENGLISH

I want to drink tea.

INTO JAPANESE

お茶が飲みたいです。

BACK INTO ENGLISH

I want to drink tea.