proveon Basic wordsalso onCEFR Intermediate (B1)? CEFR Upper intermediate (B2)? Band 2 (BND2)? להוכיח prove prove(verb) להוכיח proved proved(verb) להוכיח proven proven(verb) להוכיח proven proven(adjective) בדוק,מוכח proves proves(verb) להוכיח proving proving(verb) להוכיח unproven unproven(adjective) לא מוכח Forms verbadjective prove proven proved unproven proven proves proving