---
title: What would happen if a train timetable used a 12-hour clock without… — Morning, afternoon and the 24-hour clock · tree and pragmatics
description: What would happen if a train timetable used a 12-hour clock without am or pm? Test 10 of lesson 103 «Morning, afternoon and the 24-hour clock» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 10 · Morning, afternoon and the 24-hour clock

<!-- .ven lang=en -->
What would happen if a train timetable used a 12-hour clock without am or pm?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** train timetable · **What happens:** happen, use · **To what, where:** 12-hour clock

<!-- .vabout -->
This is test 10 of lesson 103 «Morning, afternoon and the 24-hour clock» of the world 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/world/103-morning-afternoon-24-hour-clock/#t10).

## The question {#question}

```conllu
# sent_id = question:world:103-morning-afternoon-24-hour-clock:t10:1
# text = What would happen if a train timetable used a 12-hour clock without am or pm?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	happen	happen	VERB	VB	VerbForm=Inf	0	root	_	_
4	if	if	SCONJ	IN	_	8	mark	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	train	train	NOUN	NN	Number=Sing	7	compound	_	_
7	timetable	timetable	NOUN	NN	Number=Sing	8	nsubj	_	_
8	used	use	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	advcl	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	12-hour	12-hour	NOUN	NN	Number=Sing	11	compound	_	_
11	clock	clock	NOUN	NN	Number=Sing	8	obj	_	_
12	without	without	ADP	IN	_	13	case	_	_
13	am	a.m.	NOUN	NN	Number=Sing	8	obl	_	_
14	or	or	CCONJ	CC	_	15	cc	_	_
15	pm	p.m.	NOUN	NN	Number=Sing	13	conj	_	SpaceAfter=No
16	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | would |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **use** *a condition, not said to happen* | past | a train timetable | a 12-hour clock |  |  |  | without am or pm | vn eat-39.1 «NP V NP»: agent=Agent clock=Patient |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
People could turn up 12 hours early or late

```conllu
# sent_id = question:world:103-morning-afternoon-24-hour-clock:t10:o1:1
# text = People could turn up 12 hours early or late
1	People	people	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	could	could	AUX	MD	VerbForm=Fin	3	aux	_	_
3	turn	turn	VERB	VB	VerbForm=Inf	0	root	_	_
4	up	up	ADP	RP	_	3	compound:prt	_	_
5	12	12	NUM	CD	NumForm=Digit|NumType=Card	6	nummod	_	_
6	hours	hour	NOUN	NNS	Number=Plur	3	obj	_	_
7	early	early	ADV	RB	Degree=Pos	3	advmod	_	_
8	or	or	CCONJ	CC	_	9	cc	_	_
9	late	late	ADJ	JJ	Degree=Pos	7	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn up** | could | People |  |  |  | hour | early *property* | vn appear-48.1.1 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
All trains would run at night

```conllu
# sent_id = question:world:103-morning-afternoon-24-hour-clock:t10:o2:1
# text = All trains would run at night
1	All	all	DET	DT	PronType=Tot	2	det	_	_
2	trains	train	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	run	run	VERB	VB	VerbForm=Inf	0	root	_	_
5	at	at	ADP	IN	_	6	case	_	_
6	night	night	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **run** | would | all trains |  |  |  | night |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
Nothing at all would change

```conllu
# sent_id = question:world:103-morning-afternoon-24-hour-clock:t10:o3:1
# text = Nothing at all would change
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	5	nsubj	_	_
2	at	at	ADP	IN	_	3	case	_	_
3	all	all	DET	DT	PronType=Tot	1	nmod	_	_
4	would	would	AUX	MD	VerbForm=Fin	5	aux	_	_
5	change	change	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | would | Nothing |  |  |  |  |  | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
Trains would have to run twice as fast

```conllu
# sent_id = question:world:103-morning-afternoon-24-hour-clock:t10:o4:1
# text = Trains would have to run twice as fast
1	Trains	train	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	have	have	VERB	VB	VerbForm=Inf	0	root	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	run	run	VERB	VB	VerbForm=Inf	3	xcomp	_	_
6	twice	twice	ADV	RB	NumForm=Word|NumType=Mult	5	advmod	_	_
7	as	as	ADV	RB	_	8	advmod	_	_
8	fast	fast	ADV	RB	Degree=Pos	5	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | would | Trains |  |  |  |  |  | tree rules |
| 2 | **run** | to-infinitive | Trains *not said here* |  |  |  |  | fast, twice *property* | vn run-51.3.2-2-1 «NP V»: agent=Theme |

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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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