The best replacement for future tense is future perfect tense.

The best alternatives to future tense are rated as following:
★★★★★  future perfect tense
★★★  past tense
★★  conditional tense
★★  conditional spanish
★★  ir a
  ir a infinitive
  present tense

Your alternative for future tense is not listed? Suggest!
Speaking about future tense, one probably shouldn't forget about aller.

Other search terms related to future tense and their ratings are:
★★★★★ aller
★★★ time clauses
★★ when
★ time clause
You have in mind a companion for future tense and it is not yet here? Propose!



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future tense
future perfect tense
past tense