Always or Ever may serve as English equivalents of 'sempre'. In the sense of 'ever', a synonym of 'sempre' is mai. Both words are adverbs. They're pronounced 'SEHM-pray' and 'meye'.*
*The sound 'eye' is the sound in the English noun 'eye'. In fact, the word sounds similar to the form of the first person possessive as 'my' in English.
Adverbial etymology back to the Latin word semper is the origin of the Italian word sempre. The respective pronunciations -- of the word for "always" in English translation -- will be "SEM-per" in modern (Church) Latin and "SEM-prey" in modern Italian.
It is Italian for "for ever and ever"
Sempre per sempre in Italian means "always (and) forever" in English.
Sempre in Italian means "always" or "still" in English.
divided but always united
"Always and always" is a literal English equivalent of the Italian phrase sempre e sempre. The pronunciation will be "SEM-prey SEM-prey" in Italian.
forever is sempre
Sempre qui in Italian means "always here" in English.
Sempre delizioso! in Italian means "Always delicious!" in English.
Sempre baci in Italian means "always kisses" in English.
"Always and forever my love!" in English is Sempre e per sempre l'amore mio! in Italian.
Germania per sempre! in Italian is "Germany forever!" in English.
Per sempre tuo in Italian means "Forever yours" in English.