"I drink tea."

Translation: Dw i'n yfed te.

[HeruMornie]

I am confused. Contraction of "i yn" to "i'n" is obligatory? The tips suggested that it may be pronounced to emphasize. Here "Dw i yn yfed te" was rejected.

[EllisVaughan]

I certainly wouldn't use "i yn" here. Whilst not technically incorrect it's rarely used and would never be used for a statement like "I drink tea"