About the ICE Tagset
SIDNEY GREENBAUM and NI YIBIN
The ICE tagset was devised by the Survey of English Usage. It is based on the tagset that was developed by the TOSCA Research Group at the University of Nijmegen, though the two differ substantially. The ICE tagset distinguishes nineteen word classes:
One of these classes is confined to just one item: existential there.
One or more features may be associated with a word class, and these are shown in parentheses as part of the tag. The tag as a whole is enclosed in angle brackets. For example, isn't in  is tagged as belonging to the class of verbs 〈0〉〉 and in addition as having the features present (pres), copular (cop), and negative (neg):
 Hugo has taken a dislike to Isaac Simons, but it 〈't 〈V(cop,〉s,neg)〉 personal. (W2F-016-133)