Error Codes are sometimes used to help you correct your grammar and vocabulary mistakes...
Error Codes and their meanings...
# Something must be deleted
? Confusion! Seek help!
Adj Adjective needed
Adv Adverb needed
Aux Use of incorrect auxiliary verb
B Base of verb is incorrect
C Contraction problem
D Dictionary error
G Wrong gender given to noun or pronoun
IA Incorrect Article Inf Infinitive problem
IPP Irregular past participle
IV Irregular verb
M Wrong mood (indicative vs. subjunctive)
N Incorrect number (singular vs. plural)
Nag Faulty noun-adjective agreement
Nix Makes no sense
NS A completely new structure is needed for proper meaning
P Wrong preposition
Ref Problem in reflexive verb use
S Subjunctive use problem
SP Spelling error
SV Subject-verb agreement is faulty
T Tense selection is inappropriate
t Terrific! Bravo! Brava!
WO Word order problem
WP Wrong pronoun
WV Wrong verb
WW Wrong word
x Something is missing
# Something must be deleted
? Confusion! Seek help!
Adj Adjective needed
Adv Adverb needed
Aux Use of incorrect auxiliary verb
B Base of verb is incorrect
C Contraction problem
D Dictionary error
G Wrong gender given to noun or pronoun
IA Incorrect Article Inf Infinitive problem
IPP Irregular past participle
IV Irregular verb
M Wrong mood (indicative vs. subjunctive)
N Incorrect number (singular vs. plural)
Nag Faulty noun-adjective agreement
Nix Makes no sense
NS A completely new structure is needed for proper meaning
P Wrong preposition
Ref Problem in reflexive verb use
S Subjunctive use problem
SP Spelling error
SV Subject-verb agreement is faulty
T Tense selection is inappropriate
t Terrific! Bravo! Brava!
WO Word order problem
WP Wrong pronoun
WV Wrong verb
WW Wrong word
x Something is missing