PoS tags: Penn Treebank Tagset (with Sketch Engine modifications)

POS Tag Description Example
CC coordinating conjunction and
CD cardinal number 1, third
CDZ  possessive pronoun one’s
DT determiner the
EX existential there there is
FW foreign word d’hoevre
IN preposition, subordinating conjunction in, of, like
IN/that that as 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
NNSZ possessive noun plural people’s, women’s
NNZ possessive noun, singular or mass year’s, world’s
NP proper noun, singular John
NPS proper noun, plural Vikings
NPSZ possessive proper noun, plural Boys’, Workers’
NPZ possessive noun, singular Britain’s, God’s
PDT predeterminer both the boys
PP personal pronoun I, he, it
PPZ possessive pronoun my, his
RB adverb however, usually, naturally, here, good
RBR adverb, comparative better
RBS adverb, superlative best
RP particle give up
SENT Sentence-break punctuation . ! ?
SYM Symbol / [ = *
TO infinitive ‘to’ to go
UH interjection uhhuhhuhh
VB verb be, base form be
VBD verb be, past tense was, were
VBG verb be, gerund/present participle being
VBN verb be, past participle been
VBP verb be, sing. present, non-3d am, are
VBZ verb be, 3rd person sing. present is
VH verb have, base form have
VHD verb have, past tense had
VHG verb have, gerund/present participle having
VHN verb have, past participle had
VHP verb have, sing. present, non-3d have
VHZ verb have, 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
WPZ possessive wh-pronoun whose
Z possessive ending ‘s

Source: https://www.sketchengine.co.uk/penn-treebank-tagset/