---
title: Which is true about brushing at night? — Brushing your teeth · tree and pragmatics
description: Which is true about brushing at night? Test 2 · ★ of lesson 73 «Brushing your teeth» of the everyday course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 2 · ★ · Brushing your teeth

<!-- .ven lang=en -->
Which is true about brushing at night?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **What happens:** be, brush

<!-- .vabout -->
This is test 2 · ★ of lesson 73 «Brushing your teeth» of the everyday course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/everyday/73-brushing-your-teeth/#t2).

## The question {#question}

```conllu
# sent_id = question:everyday:73-brushing-your-teeth:t2:1
# text = Which is true about brushing at night?
1	Which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	true	true	ADJ	JJ	Degree=Pos	0	root	_	_
4	about	about	SCONJ	IN	_	5	mark	_	_
5	brushing	brush	VERB	VBG	Tense=Pres|VerbForm=Part	3	advcl	_	_
6	at	at	ADP	IN	_	7	case	_	_
7	night	night	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
8	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | true *property* | tree rules |
| 2 | **brush** | gerund |  |  |  |  | night |  | vn floss-41.2.1 «NP V»: agent=Agent |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
It matters least because you do not eat anything at night while you sleep

```conllu
# sent_id = question:everyday:73-brushing-your-teeth:t2:o1:1
# text = It matters least because you do not eat anything at night while you sleep
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	matters	matter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	least	least	ADV	RBS	Degree=Sup	2	advmod	_	_
4	because	because	SCONJ	IN	_	8	mark	_	_
5	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	8	nsubj	_	_
6	do	do	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	8	aux	_	_
7	not	not	PART	RB	Polarity=Neg	8	advmod	_	_
8	eat	eat	VERB	VB	VerbForm=Inf	2	advcl	_	_
9	anything	anything	PRON	NN	Number=Sing|PronType=Ind	8	obj	_	_
10	at	at	ADP	IN	_	11	case	_	_
11	night	night	NOUN	NN	Number=Sing	8	obl	_	_
12	while	while	SCONJ	IN	_	14	mark	_	_
13	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	14	nsubj	_	_
14	sleep	sleep	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **matter** | present | It |  |  |  |  | least *property* | vn matter-91 «NP V»: agent=Stimulus |
| 2 | **not** **eat** | present · do-support | you | anything |  |  | night |  | vn eat-39.1-1 «NP V NP»: agent=Agent anything=Patient |
| 3 | **sleep** | present | you |  |  |  |  |  | vn snooze-40.4-1 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
It is needed only for grown-up teeth

```conllu
# sent_id = question:everyday:73-brushing-your-teeth:t2:o2:1
# text = It is needed only for grown-up teeth
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	needed	need	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	only	only	ADV	RB	_	9	advmod	_	_
5	for	for	ADP	IN	_	9	case	_	_
6	grown	grow	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	amod	_	SpaceAfter=No
7	-	-	PUNCT	HYPH	_	8	punct	_	SpaceAfter=No
8	up	up	ADP	RP	_	6	compound:prt	_	_
9	teeth	tooth	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present · passive |  | It |  |  |  | for grown teeth | vn want-32.1-1-1 «NP V NP ADV»: subject=Theme |
| 2 | **grow up** | participle |  |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
It is only needed if you ate sweets

```conllu
# sent_id = question:everyday:73-brushing-your-teeth:t2:o3:1
# text = It is only needed if you ate sweets
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
3	only	only	ADV	RB	_	4	advmod	_	_
4	needed	need	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	if	if	SCONJ	IN	_	7	mark	_	_
6	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	7	nsubj	_	_
7	ate	eat	VERB	VBD	Mood=Ind|Number=Sing|Person=2|Tense=Past|VerbForm=Fin	4	ccomp	_	_
8	sweets	sweet	NOUN	NNS	Number=Plur	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present · passive |  | It |  |  |  |  | tree rules |
| 2 | **eat** *a condition, not said to happen* | past | you | sweets |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent sweet=Patient |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
It matters most because the mouth has less spit while you sleep

```conllu
# sent_id = question:everyday:73-brushing-your-teeth:t2:o4:1
# text = It matters most because the mouth has less spit while you sleep
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	matters	matter	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	most	most	ADV	RBS	Degree=Sup	2	advmod	_	_
4	because	because	SCONJ	IN	_	7	mark	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	mouth	mouth	NOUN	NN	Number=Sing	7	nsubj	_	_
7	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
8	less	less	ADJ	JJR	Degree=Cmp	9	amod	_	_
9	spit	spit	NOUN	NN	Number=Sing	7	obj	_	_
10	while	while	SCONJ	IN	_	12	mark	_	_
11	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	12	nsubj	_	_
12	sleep	sleep	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **matter** | present | It |  |  |  |  |  | vn matter-91 «NP V»: agent=Stimulus |
| 2 | **have** | present | the mouth | less spit |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent spit=Patient |
| 3 | **sleep** | present | you |  |  |  |  |  | vn snooze-40.4-1 «NP V»: agent=Agent |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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- ← previous: [Brushing your teeth, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/t1/)
- next →: [Brushing your teeth, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/t3/)
- ↑ back to [Brushing your teeth](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/)