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Number: number

In English, Number is a feature of nouns and other parts of speech that mark agreement with nouns, i.e. personal pronouns, verbs, and some determiners.

Sing: singular

A singular noun denotes one person, animal or thing. Every noun with the PTB tag NN or NNP is marked with this feature.

Examples:

• an apple, a train

Pronouns that refer to a single person, an animal or a thing are also marked with this feature.

• I, me, my, myself, he, his, him, himself, she, her, hers, herself, it, its, itself

We also mark all verbs with the PTB tag VBZ with this feature.

Examples:

• she does
• he walks

Further, we mark inflections of be that can only have a singular noun or pronoun in subject position with this feature.

• am, is, was

Demonstrative determiners of singular nouns and demonstrative pronouns that refer to singular nouns are also marked with this feature.

• this, that

Plur: plural

A plural noun denotes several persons, animals or things. Every noun with the PTB tag NNS or NNPS is marked with this feature.

Examples:

• several apples, two trains

Pronouns that refer to a single person, an animal or a thing are also marked with this feature.

• we, us, our, ours, ourselves, yourselves, they, them, their, theirs, themselves

Demonstrative determiners of plural nouns and demonstrative pronouns that refer to plural nouns are also marked with this feature.

• these, those

We currently don’t mark plurale tantum or collective/mass nouns.

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Treebank Statistics (UD_English)

This feature is universal. It occurs with 2 different values: Plur, Sing.

83560 tokens (34%) have a non-empty value of Number. 14373 types (75%) occur at least once with a non-empty value of Number. 11826 lemmas (73%) occur at least once with a non-empty value of Number. The feature is used with 12 part-of-speech tags: en-pos/NOUN (41842; 17% instances), en-pos/PRON (16533; 7% instances), en-pos/PROPN (16266; 7% instances), en-pos/VERB (5633; 2% instances), en-pos/AUX (1834; 1% instances), en-pos/DET (1395; 1% instances), en-pos/SYM (47; 0% instances), en-pos/ADJ (5; 0% instances), en-pos/X (2; 0% instances), en-pos/ADP (1; 0% instances), en-pos/ADV (1; 0% instances), en-pos/INTJ (1; 0% instances).

NOUN

41842 en-pos/NOUN tokens (100% of all NOUN tokens) have a non-empty value of Number.

NOUN tokens may have the following values of Number:

• Plur (9912; 24% of non-empty Number): people, years, days, things, questions, times, guys, months, friends, places
• Sing (31930; 76% of non-empty Number): time, service, place, thanks, food, way, day, year, pm, work
• EMPTY (3): equivalant, folks, staff

Paradigm time	Sing	Plur
	time	times

PRON

16533 en-pos/PRON tokens (73% of all PRON tokens) have a non-empty value of Number.

The most frequent other feature values with which PRON and Number co-occurred: PronType=Prs (14899; 90%), Poss=EMPTY (13765; 83%), Gender=EMPTY (11793; 71%), Case=Nom (9510; 58%).

PRON tokens may have the following values of Number:

• Plur (4069; 25% of non-empty Number): they, we, their, our, them, us, those, these, themselves, ourselves
• Sing (12464; 75% of non-empty Number): i, it, my, he, me, this, his, that, him, she
• EMPTY (6094): you, your, that, what, there, which, who, one, mine, whom

Number seems to be lexical feature of PRON. 100% lemmas (33) occur only with one value of Number.

PROPN

16266 en-pos/PROPN tokens (100% of all PROPN tokens) have a non-empty value of Number.

PROPN tokens may have the following values of Number:

• Plur (605; 4% of non-empty Number): americans, Beatles, Iraqis, Palestinians, Islands, Tigers, Shiites, Seas, Muslims, Securities
• Sing (15661; 96% of non-empty Number): US, al, Bush, enron, Iraq, Iran, China, Qaeda, New, united
• EMPTY (3): Central, Modern, english

Paradigm States	Sing	Plur
	States	States

Number seems to be lexical feature of PROPN. 100% lemmas (5429) occur only with one value of Number.

VERB

5633 en-pos/VERB tokens (17% of all VERB tokens) have a non-empty value of Number.

The most frequent other feature values with which VERB and Number co-occurred: VerbForm=Fin (5627; 100%), Mood=Ind (5627; 100%), Person=3 (5454; 97%), Tense=Pres (4668; 83%).

VERB tokens may have the following values of Number:

• Plur (2; 0% of non-empty Number): associates, rays
• Sing (5631; 100% of non-empty Number): is, was, ‘s, has, am, s, says, seems, makes, needs
• EMPTY (27837): have, are, be, get, know, had, go, do, want, said

Number seems to be lexical feature of VERB. 100% lemmas (436) occur only with one value of Number.

AUX

1834 en-pos/AUX tokens (19% of all AUX tokens) have a non-empty value of Number.

The most frequent other feature values with which AUX and Number co-occurred: VerbForm=Fin (1834; 100%), Mood=Ind (1834; 100%), Person=3 (1622; 88%), Tense=Pres (1337; 73%).

AUX tokens may have the following values of Number:

• Sing (1834; 100% of non-empty Number): is, was, has, does, am, ‘s, s, gets, `s
• EMPTY (7745): will, can, would, have, do, be, are, could, should, did

DET

1395 en-pos/DET tokens (7% of all DET tokens) have a non-empty value of Number.

The most frequent other feature values with which DET and Number co-occurred: Definite=EMPTY (1395; 100%), PronType=Dem (1394; 100%).

DET tokens may have the following values of Number:

• Plur (285; 20% of non-empty Number): these, those
• Sing (1110; 80% of non-empty Number): this, that, A
• EMPTY (18253): the, a, an, all, some, any, no, another, every, each

SYM

47 en-pos/SYM tokens (7% of all SYM tokens) have a non-empty value of Number.

SYM tokens may have the following values of Number:

• Sing (47; 100% of non-empty Number): %, 1%P701!.doc, Assh@%$e
• EMPTY (650): $, -, :), /, +, |, :(, :-), :D, x

ADJ

5 en-pos/ADJ tokens (0% of all ADJ tokens) have a non-empty value of Number.

The most frequent other feature values with which ADJ and Number co-occurred: Degree=EMPTY (5; 100%).

ADJ tokens may have the following values of Number:

• Sing (5; 100% of non-empty Number): Global, Pakistani, criminal, female, middle
• EMPTY (15609): good, great, other, best, new, many, more, last, same, few

X

2 en-pos/X tokens (0% of all X tokens) have a non-empty value of Number.

X tokens may have the following values of Number:

• Sing (2; 100% of non-empty Number): URSULA
• EMPTY (1137): etc, 1, 2, etc., 3, a, carol.st.clair@enron.com, 4, over, -

ADP

1 en-pos/ADP tokens (0% of all ADP tokens) have a non-empty value of Number.

ADP tokens may have the following values of Number:

• Sing (1; 100% of non-empty Number): auto
• EMPTY (20931): of, in, to, for, on, with, at, from, by, as

INTJ

1 en-pos/INTJ tokens (0% of all INTJ tokens) have a non-empty value of Number.

INTJ tokens may have the following values of Number:

• Sing (1; 100% of non-empty Number): appetit
• EMPTY (916): please, yes, well, no, hi, like, ok, lol, hey, oh

ADV

1 en-pos/ADV tokens (0% of all ADV tokens) have a non-empty value of Number.

The most frequent other feature values with which ADV and Number co-occurred: PronType=EMPTY (1; 100%).

ADV tokens may have the following values of Number:

• Sing (1; 100% of non-empty Number): best
• EMPTY (12872): so, just, very, when, also, how, now, even, there, then

Relations with Agreement in Number

The 10 most frequent relations where parent and child node agree in Number: NOUN –[compound]–> NOUN (3818; 72%), NOUN –[nmod]–> NOUN (3027; 62%), PROPN –[compound]–> PROPN (2776; 91%), NOUN –[conj]–> NOUN (1875; 79%), PROPN –[name]–> PROPN (1490; 99%), NOUN –[cop]–> VERB (1182; 61%), NOUN –[nmod]–> PROPN (1078; 72%), NOUN –[compound]–> PROPN (862; 74%), PROPN –[conj]–> PROPN (831; 96%), NOUN –[nsubj]–> PRON (751; 74%).

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