POS Tag Description Example
CC coordinating conjunction and
CD cardinal number 1, third
DT determiner the
EX existential there thereis
FW foreign word d’hoevre
IN prepositions exceptto, subordinating conjunction in, of, like
IN/that thatas subordinator that
JJ adjective green
JJR adjective, comparative greener
JJS adjective, superlative greenest
LS list marker 1)
MD modal could, will
NN noun, singular or mass table
NNS noun plural tables
NP proper noun, singular John
NPS proper noun, plural Vikings
PDT predeterminer boththe boys
POS possessive ending friend’s
PP personal pronoun I, he, it
PP$ possessive pronoun my, his
RB adverb however, usually, naturally, here, good
RBR adverb, comparative better
RBS adverb, superlative best
RP particle giveup
SENT Sentence-break punctuation . ! ?
SYM Symbol / [ = *
TO to in all its uses (sorry) togo,tohim
UH interjection uhhuhhuhh
VB verbbe, base form be
VBD verbbe, past tense was, were
VBG verbbe, gerund/present participle being
VBN verbbe, past participle been
VBP verbbe, sing. present, non-3d am, are
VBZ verbbe, 3rd person sing. present is
VH verbhave, base form have
VHD verbhave, past tense had
VHG verbhave, gerund/present participle having
VHN verbhave, past participle had
VHP verbhave, sing. present, non-3d have
VHZ verbhave, 3rd person sing. present has
VV verb, base form take
VVD verb, past tense took
VVG verb, gerund/present participle taking
VVN verb, past participle taken
VVP verb, sing. present, non-3d take
VVZ verb, 3rd person sing. present takes
WDT wh-determiner which
WP wh-pronoun who, what
WP$ possessive wh-pronoun whose
WRB wh-abverb where, when
# # #
$ $ $
Quotation marks ‘ “
Opening quotation marks ‘ “
( Opening brackets ( {
) Closing brackets ) }
, Comma ,
: Punctuation – ; : — …

See also:

  1. Marcus, Beatrice Santorini and M.A. Marcinkiewicz: Building a large annotated corpus of English: The Penn Treebank. In Computational Linguistics, volume 19, number 2, pp. 313–330.