---
title: In regenerative braking the motor works backwards as a generator, a… — Electric cars and charging · tree and pragmatics
description: In regenerative braking the motor works backwards as a generator, a machine that makes electricity, when the car slows, putting some energy back into the battery, and some electric cars can almost stop without the brake pedal. Who acts: motor, machine, car, electric cars. A sentence of the lesson «E
---

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# Electric cars and charging, sentence 9

<!-- .ven lang=en -->
In regenerative braking the motor works backwards as a generator, a machine that makes electricity, when the car slows, putting some energy back into the battery, and some electric cars can almost stop without the brake pedal.

<!-- .vintro -->
**Who acts:** motor, machine, car, electric cars · **What happens:** work, make, slow, put, stop · **To what, where:** electricity, energy

<!-- .vabout -->
This is a sentence of the lesson «Electric cars and charging» of the technology 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 (motor, machine, car, electric cars), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:019-electric-cars-and-charging.lesson:9
# text = In regenerative braking the motor works backwards as a generator, a machine that makes electricity, when the car slows, putting some energy back into the battery, and some electric cars can almost stop without the brake pedal.
# source = school lesson (ours)
# course = technology
# lesson = 019-electric-cars-and-charging.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): R5-strong ×1, R7-rel-agree ×1
1	In	in	ADP	IN	_	3	case	_	_
2	regenerative	regenerative	ADJ	JJ	Degree=Pos	3	amod	_	_
3	braking	braking	NOUN	NN	Number=Sing	6	obl	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	motor	motor	NOUN	NN	Number=Sing	6	nsubj	_	_
6	works	work	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	backwards	backwards	ADV	RB	_	6	advmod	_	_
8	as	as	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	generator	generator	NOUN	NN	Number=Sing	6	obl	_	_
11	,	,	PUNCT	,	_	13	punct	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	machine	machine	NOUN	NN	Number=Sing	10	appos	_	_
14	that	that	PRON	WDT	PronType=Rel	15	nsubj	_	_
15	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	acl:relcl	_	_
16	electricity	electricity	NOUN	NN	Number=Sing	15	obj	_	_
17	,	,	PUNCT	,	_	21	punct	_	_
18	when	when	ADV	WRB	PronType=Int	21	advmod	_	_
19	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
20	car	car	NOUN	NN	Number=Sing	21	nsubj	_	_
21	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	advcl	_	Agree=R7-rel-agree|Haiku=15:conj
22	,	,	PUNCT	,	_	23	punct	_	_
23	putting	put	VERB	VBG	Tense=Pres|VerbForm=Part	21	advcl	_	_
24	some	some	DET	DT	PronType=Ind	25	det	_	_
25	energy	energy	NOUN	NN	Number=Sing	23	obj	_	_
26	back	back	ADV	RB	_	23	advmod	_	_
27	into	into	ADP	IN	_	29	case	_	_
28	the	the	DET	DT	Definite=Def|PronType=Art	29	det	_	_
29	battery	battery	NOUN	NN	Number=Sing	26	obl	_	_
30	,	,	PUNCT	,	_	37	punct	_	_
31	and	and	CCONJ	CC	_	37	cc	_	_
32	some	some	DET	DT	PronType=Ind	34	det	_	_
33	electric	electric	ADJ	JJ	Degree=Pos	34	amod	_	_
34	cars	car	NOUN	NNS	Number=Plur	37	nsubj	_	_
35	can	can	AUX	MD	VerbForm=Fin	37	aux	_	_
36	almost	almost	ADV	RB	_	37	advmod	_	_
37	stop	stop	VERB	VB	VerbForm=Inf	6	conj	_	Agree=R5-strong|Haiku=15:conj
38	without	without	ADP	IN	_	41	case	_	_
39	the	the	DET	DT	Definite=Def|PronType=Art	41	det	_	_
40	brake	brake	NOUN	NN	Number=Sing	41	compound	_	_
41	pedal	pedal	NOUN	NN	Number=Sing	37	obl	_	_
42	.	.	PUNCT	.	_	6	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 | **work** | present | the motor |  |  |  |  | as a generator; in regenerative braking; backwards *property* | vn employment-95.3 «NP V PP.theme»: agent=Agent in braking=Theme |
| 2 | **make** | present | a machine | electricity |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset electricity=Product |
| 3 | **slow** | present | the car |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 4 | **put** | gerund | the car *not said here* | some energy |  |  |  |  | vn invest-13.5.4-1 «NP V PP»: agent=Agent energy=Goal |
| 5 | **stop** | can | some electric cars |  |  |  |  | without the brake pedal; almost *property* | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |

<!-- .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:technology:019-electric-cars-and-charging.lesson:9`.

**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): R5-strong ×1, R7-rel-agree ×1. **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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