Learning to send CW accurately, and at increasing speed requires a lot of practise, using all the characters that could expect to be sent. Pangrams use all the letters of the alphabet at least once, to create a sentence. Using these for practise is useful in that it's often found that a particular combination of letters might be hard to send. This could be a physical or mental limitation that can be overcome by repeating the letter combination.

• The quick brown fox jumps over a lazy dog.
• Waltz, nymph, for quick jigs vex Bud.
• Sphinx of black quartz, judge my vow.
• Pack my box with five dozen liquor jugs.
• Glib jocks quiz nymph to vex dwarf.
• Jackdaws love my big sphinx of quartz.
• The five boxing wizards jump quickly.
• How vexingly quick daft zebras jump.
• Quick zephyrs blow, vexing daft Jim.
• Two driven jocks help fax my big quiz.
• The jay, pig, fox, zebra and my wolves quack.
• Sympathizing would fix Quaker objectives.
• A wizard's job is to vex chumps quickly in fog.
• Watch Jeopardy, Alex Trebek's fun TV quiz game.
• By Jove, my quick study of lexicography won a prize.
• Waxy and quivering, jocks fumble the pizza.
• My girl wove six dozen plaid jackets before she quit.
• Sixty zippers were quickly picked from the woven jute bag.
• Brown jars prevented the mixture from freezing too quickly.
• We promptly judged antique ivory buckles for the next prize.
• When zombies arrive, quickly fax Judge Pat.
• Pack my box with five dozen liquor jugs.
• Farmer Jack realized that big yellow quilts were expensive.