---
title: Years ending in 00 are leap years only if they divide by 400, so 200… — Time zones and the calendar · tree and pragmatics
description: Years ending in 00 are leap years only if they divide by 400, so 2000 was a leap year but 1900 was not. Who acts: Years, zones, 2000, 1900. A sentence of the lesson «Time zones and the calendar» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Time zones and the calendar, sentence 14

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Years ending in 00 are leap years only if they divide by 400, so 2000 was a leap year but 1900 was not.

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**Who acts:** Years, zones, 2000, 1900 · **What happens:** end, be, divide, not be · **To what, where:** 00, leap years, leap year

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This is a sentence of the lesson «Time zones and the calendar» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Years, zones, 2000, 1900), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:009-time-zones-and-the-calendar.lesson:14
# text = Years ending in 00 are leap years only if they divide by 400, so 2000 was a leap year but 1900 was not.
# source = school lesson (ours)
# course = world
# lesson = 009-time-zones-and-the-calendar.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): no change
1	Years	year	NOUN	NNS	Number=Plur	7	nsubj	_	_
2	ending	end	VERB	VBG	VerbForm=Ger	1	acl	_	_
3	in	in	ADP	IN	_	4	case	_	_
4	00	00	NUM	CD	NumForm=Digit|NumType=Card	2	obl	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
6	leap	leap	NOUN	NN	Number=Sing	7	compound	_	_
7	years	year	NOUN	NNS	Number=Plur	0	root	_	_
8	only	only	ADV	RB	_	11	advmod	_	_
9	if	if	SCONJ	IN	_	11	mark	_	_
10	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	11	nsubj	_	_
11	divide	divide	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	advcl	_	_
12	by	by	ADP	IN	_	13	case	_	_
13	400	400	NUM	CD	NumForm=Digit|NumType=Card	11	obl	_	_
14	,	,	PUNCT	,	_	20	punct	_	_
15	so	so	ADV	RB	_	20	advmod	_	_
16	2000	2000	NUM	CD	NumForm=Digit|NumType=Card	20	nsubj	_	_
17	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	20	cop	_	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	20	det	_	_
19	leap	leap	NOUN	NN	Number=Sing	20	compound	_	_
20	year	year	NOUN	NN	Number=Sing	7	parataxis	_	_
21	but	but	CCONJ	CC	_	23	cc	_	_
22	1900	1900	NUM	CD	NumForm=Digit|NumType=Card	23	nsubj	_	_
23	was	be	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	20	conj	_	_
24	not	not	PART	RB	Polarity=Neg	23	advmod	_	_
25	.	.	PUNCT	.	_	7	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **end** | gerund | Years *not said here* |  |  | 00 |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |
| 2 | **is a** | present | Years | leap years |  |  |  |  | tree rules |
| 3 | **divide** *a condition, not said to happen* | present | zones *= zone* |  |  |  |  | by 400 | vn multiply-108-1 «NP V NP PP.co-theme»: agent=Agent by 400=Co-Theme |
| 4 | **is a** | past | 2000 | a leap year |  |  |  |  | tree rules |
| 5 | **not** **be** | past | 1900 |  |  |  |  |  | vn exist-47.1 «NP V»: agent=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:world:009-time-zones-and-the-calendar.lesson:14`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): no change. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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