verb
/ˈʃæl, ʃəl/ past tense should /ˈʃʊd, ʃəd/; present tense for both singular and plural shall; negative shall not or shan't /ˈʃænt, Brit ˈʃɑːnt/
[modal verb] formal
used to say that something is expected to happen in the future
used to ask for someone's opinion
used to give a command or to say that you will or will not allow something to happen
used in laws or rules to say that something is required