What is 'when goodbye means forever' in Latin?

The Latin equivalent of 'when goodbye means forever' is Quando 'vale' significat 'semper'. In the Word-by-Word translation, the dependent conjunction 'quando' means 'when'. The verb 'vale' means 'farewell, goodbye'. The verb 'significat' means '[he/she/it] does mean, is meaning, means'. The adverb 'semper' means 'always, forever'.