(1) Both quick, vexing, frowzy lads jump. (2) Both quick dogs jump over a lazy wan fox.

[Paramah Sungelee]

I have succeeded in writing a grammatically correct pangram of less than 30 letters.
"Both quick, vexing, frowzy lads jump."

Besides, I wrote another pangram of 32 letters, "Both quick dogs jump over a lazy wan fox.", which is in fact a variation of the famous pangram "The quick brown fox jumps over a lazy dog." However, I wish to share these two pangrams.

 

[Tdol]

Well done, though I prefer the second.