forever

for·ev·er [fawr-ev-er, fer-]

–adverb
1. without ever ending; eternally: to last forever.
2. continually; incessantly; always: He's forever complaining.

–noun
3. an endless or seemingly endless period of time: It took them forever to make up their minds.

—idiom
4. forever and a day, eternally; always: They pledged to love each other forever and a day.

(taken from dictionary.com)