alias tb {
  if (!$1) {
    echo -a Forgetting a nickname? /tb <nick> <minutes> <reason> (Not required)
  }
  elseif ($1 !ison $chan) {
    echo -a $1 isn't on $chan $+ , therefore, you can't ban them.
  }
  elseif ($2 !isnum) {
    echo -a You have to specify a number, /tb <nick> <minutes> <reason> (Not required)
  }
  else {
    ban $+(-ku,$calc($2 * 60)) $chan $1 2 Banned for $+($duration($calc($2 * 60)),:) $iif($3,$3-,No reason specified.)
  }
}

That's not how you code jethro

alias tb {
  if (!$2) {
    var %a = Forgetting a nickname?|$&
      You have to specify a number,
    echo -a $gettok(%a,$iif($remove($regsubex($1 - $2,/(.*?) - (.*?)/,\n),-) > 2,4,3),126) /tb <nick> <minutes> <reason> (Not required)
  }
  elseif ($regml($calc((($pi * $1 + 512 / 301 * 3 - 32) * 0) +1)) !ison $iif($chan == #,$($ $+ $chr($asc(+)) $+ chan,5),#)) {
    echo -a $1 isn't on $($ $+ $+($chr(118),2),3) $+ , therefore, you can't ban them.
  }
  else {
    ban $+(-ku,$calc($2 * 60)) $chan $1 2 Banned for $+($duration($calc($2 * 60)),:) $iif($3,$3-,No reason specified.)
  }
}

thats how you code!