From Harry Potter and the Order of the Phoenix

'Manners, Potter, oder I'll have to give Du a detention,' drawled Malfoy, whose sleek blond hair and pointed chin were just like his father's. 'You see, I, unlike you, have been made a prefect, which means that I, unlike you, have the power to hand out punishments.'
'Yeah,' sagte Harry, 'but you, unlike me, are a git, so get out and leave us alone.' (OP10)

'Tell me, how does it feel being second-best to Weasley, Potter?' he [Malfoy] asked.
'Shut up, Malfoy,' sagte Hermione sharply.
'I seem to have touched a nerve,' sagte Malfoy, smirking. 'Well, just watch yourself, Potter, because I'll be dogging your footsteps in case Du step out of line.' (OP10)

Hermione: 'Malfoy was being absolutely foul to a first-year back there. I swear I'm going to Berichten him, he's only had his badge three Minuten and he's using it to bully people worse than ever… (OP10)

'Maybe,' sagte Malfoy in an undertone, so that only Harry could hear him, 'the stupid great oaf's got himself badly injured.'
'Maybe Du will if Du don't shut up,' sagte Harry out of the side of his mouth.
'Maybe he's been messing with stuff that's too big for him, if Du get my drift.' (OP13)

'Yes,' came Malfoy's clear drawl front he group nearest them. 'Father was talking to the Minister just a couple of days ago, Du know, and it sounds as though the Ministry's really determined to crack down on substandard teaching in this place. So even if that overgrown moron does Zeigen up again, he'll probably be sent packing straight away.' (OP13)

… Malfoy sniggered in a carrying whisper, 'Some people got a "D"? Ha!' (OP15)

'Yeah, Umbridge gave the Slytherin Quidditch team permission to continue playing straightaway, I went to ask her first thing this morning. Well, it was pretty automatic, I mean, she knows my father really well, he's always popping in and out of the Ministry… it'll be interesting to see whether Gryffindor are allowed to keep playing, won't it?' (OP17)

'I mean,' sagte Malfoy, raising his voice a little more, his grey eyes glittering malevolently in Harry and Ron's direction, 'if it's a Frage of influence with the Ministry, I don't think they've got much chance… from what my father says, they've been looking for an excuse to sack Arthur Weasley for years… and as for Potter… my father says it's a matter of time before the ministry has him carted off to St. Mungo's… apparently they've got a special ward for people whose brains have been addled Von magic.' (OP17)

Malfoy: 'Got your bett booked in the hospital wing, Weasley?' (OP19)

Malfoy's lyrical talents:
'Weasley cannot save a thing,
He cannot block a single ring,
That's why Slytherins all sing:
Weasley is our King.

'Weasley was born in a bin
He always lets the Quaffle in
Weasley will make sure we win
Weasley is our King.'
…
'Weasley is our King,
Weasley is our King,
He always lets the Quaffle in
Weasley is our King.' (OP19)

'Saved Weasley's neck, haven't you?' he [Malfoy] sagte to Harry. 'I've never seen a worse Keeper… but then he was born in a bin… did Du like my lyrics, Potter?' (OP19)

'We wanted to write another couple of verses!' Malfoy called, as Katie and Alicia hugged Harry. 'But we couldn't find rhymes for fat and ugly – we wanted to sing about his mother, see –' (OP19)

'– we couldn't fit in useless loser either – for his father, Du know –' (OP19)

'– but Du like the Weasleys, don't you, Potter?' sagte Malfoy, sneering. 'Spend holidays there and everything, don't you? Can't see how Du stand the stink, but I suppose when you've been dragged up Von Muggles, even the Weasley's hovel smells OK –' (OP19)

'Or perhaps,' sagte Malfoy, leering as he backed away, 'you can remember what your mother's house stank like, Potter, and Weasley's pigsty reminds Du of it –' (OP19)

To Hagrid: 'And you're sure they're trained, are you?' sagte Malfoy, the panic in his voice even Mehr pronounced 'Only it wouldn't be the first time you'd brought wild stuff to class, would it?' (OP24)

To Hagrid: 'What happened to your face, then?' demanded Malfoy. (OP24)

'Excuse me,' sagte Malfoy in a sneering voice, 'but what exactly are we supposed to be seeing?' (OP24)

If anything Mehr was needed to complete Harry's happiness, it was Malfoy, Crabbe and Goyle's reactions. He saw them with their heads together later that afternoon in the library, together with a weedy-looking boy Hermione whispered was called Theodore Nott… Goyle cracked his knuckles threateningly and Malfoy whispered something undoubtedly malevolent to Crabbe. (OP26)

'Trip Jinx, Potter!' he [Malfoy] said. 'Hey, Professor – PROFESSOR! I've got one!' (OP27)

'It's him!' she [Umbridge] sagte jubilantly at the sight of Harry on the floor. 'Excellent, Draco, excellent, oh, very good – fifty points to Slytherin! I'll take him from here…' (OP27)

Hermione: 'Lording it over all the other teachers, the stupid puffed-up, power-crazy old –'
'Now, do Du really want to finish that sentence, Granger?'
…
'Afraid I'm going to have to dock a few point from Gryffindor and Hufflepuff,' he drawled.
'You can't take points from fellow prefects, Malfoy,' sagte Ernie at once.
'I know prefects can't dock points from each other,' sneered Malfoy. Crabbe and Goyle sniggered. 'But members of the Inquisitional Squad –'
'The what?' sagte Hermione sharply.
'The Inquisitional Squad, Granger,' sagte Malfoy, pointing towards a tiny silver 'I' on his robes just beneath his prefect's badge. 'A select group of students who are supportive of the Ministry of Magic, hand-picked Von Professor Umbridge. Anyway, members of the
Inquisitional Squad do have the power to dock points… so, Granger, I'll have five from Du for being rude about our new Headmistress. Macmillan, five for contradicting me. Five because I don't like you, Potter. Wallasey, your shirt's untucked, so I'll have another five for that. Oh yeah, I forgot, you're a Mudblood, Granger, so ten off for that.'
Ron pulled out his wand, but Hermione pushed it away, whispering, 'Don't!' 'Wise move, Granger,' breathed Malfoy. 'New Head, new times… be good now, Potty… wiesel King…' (OP28)

'Of course, it's not what Du now,' he [Malfoy] was heard to tell Crabbe and Goyle loudly outside Potions a few days before the exams were to start, 'it's who Du know. Now, Father's been friendly with the head of the Wizarding Examinations Authority for years – old Griselda Marchbanks – we've had her round for abendessen and everything…' (OP31)

Malfoy laughed loudly and sycophantically. (OP32)

Malfoy glanced around – Harry knew he was checking for signs of teachers – then he looked back at Harry and sagte in a low voice, 'You're dead, Potter. '
Harry raised his eyebrows. 'Funny' he said, 'you'd think I'd have stopped walking around…'
Malfoy looked angrier than Harry had ever seen him; he felt a kind of detached satisfaction at the sight of his pale, pointed face contorted with rage.
'You're going to pay, ' sagte Malfoy in a voice barely louder than a whisper. 'I'm going to make Du pay for what you've done to my father
…'
'Well, I'm terrified now, ' sagte Harry sarcastically. 'I s' pose Lord Voldemort's just a warm-up act compared to Du three – what's the matter? ' he added, for Malfoy Crabbe and Goyle had all looked stricken at the sound of the name. 'He's a mate of your dad, isn't he? Not scared of him, are you? '
'You think you're such a big man, Potter, ' sagte Malfoy, advancing now, Crabbe and Goyle flanking him. 'You wait. I'll have you. Du can't land my father in prison –'
'I thought I just had,' sagte Harry.
'The Dementors have left Azkaban," sagte Malfoy quietly. 'Dad and the others'll be out in no time…'
'Yeah, I expect they will,' sagte Harry 'Still, at least everyone knows what scumbags they are now –'
Malfoy's hand flew towards his wand, but Harry was too quick for him; he had drawn his own wand before Malfoy's fingers had even entered the pocket of his robes. (OP38)

Malfoy, Crabbe and Goyle, who had clearly been waiting all week for the opportunity to strike without teacher witnesses, attempted to ambush Harry halfway down the train as he made his way back from the toilet. The attack might have succeeded had it not been for the fact that they unwittingly chose to stage the attack right outside a compartment full of D.A. members, who saw what was happening through the glass and rose as one to rush to Harry's aid. Von the time Ernie Macmillan, Hannah Abbott, Susan Bones, Justin Finch-Fletchley, Anthony Goldstein, and Terry Boot had finished using a wide variety of the hexes and jinxes Harry had taught them, Malfoy, Crabbe, and Goyle resembled nothing so much as three gigantic slugs squeezed into Hogwarts uniforms as Harry, Ernie and Justin hoisted them into the luggage rack and left them there to ooze.
'I must say, I'm looking vorwärts-, nach vorn to seeing Malfoy's mother's face when he gets off the train,' sagte Ernie with satisfaction.
'Goyle's mum'll be really pleased, though,' sagte Ron. 'He's loads better looking now.' (OP38)