These are background lines from Season 2.
Phineas: Okay, try panicking and making a lot of sudden movements.
Doofenshmirtz: (referring to the BO-AT) Everyone will want one.
Lawrence: 2, across; Uh, the tip on the elbow.
P. P. Otter: Hey you, girl!
Herman: (in response to the woman's question): No.
Grandma Winifred: I heard that.
Stacy: Ooh. Shoes.
Doofenshmirtz: Now, Perry the Platypus, you can never be sure where the final strike will come from.
Kids: It's back! It's gone! It's back! It's gone! Back! Gone! Back! Gone!
Doofenshmirtz' date: Nothing!
Doofenshmirtz: Come on!
Phineas: We're coming!
Isabella: Hi guys!
Phineas: What ever happened to strike two?
Candace: Get a tarp over that thing ASAP!
Mandy: I can hear you!
Candace: Be a star! Come on! Be a star!
Phineas: Hey, Baljeet, we're home!
Past Candace: Look, look, look! See?!
Past Linda: Time to go. I've got frozens.
Irving: How about a game of hide and seek?
Mrs. Tjinder: Baljeet! The Patels are here!
Candace: Bu-GA! Bu-GA! Ooka-ooka-ooka-ooka!
Candace: The delivery guy brought it while you two were camping out in the mailbox.
Candace: Oh... my... gosh!
Buford: Hey, is it time for me yet?
Buford: Thank you!
Phineas: That's the last of it, guys! Thanks!
Phineas: I'm not feeling any of them.
Doofenshmirtz: It was a bigger spot before I wrote, "Save for Perry," but there's some room there. Grab that marker.
Doofenshmirtz: Oh, my good foot again! Oh, no, my bad foot—Oh, this is really a viscous cycle!
Buford: You've got no honor!
Vanessa: You please let go.
Candace: You let go!
Vanessa: Give it back!
Candace: You give it back! Ooh! Uhh!
Vanessa: Give it back!
Phineas: All done, Ferb?
Linda: You used to love those. You should sign up!
Linda: Could somebody please tell me if I am warm or cold?
Candace: You're cold!!!
Baljeet: THERE IS NO CANDY IN ME!!!
Buford: Why is this happening?!?!
Phineas: What the heck are you doing, anyhow?
Isabella: Hey, Phineas!
Candace: BWAH HA HA HA HA! LETTERS TO SANTA!?! AH HA HA!!
Phineas: (referring to Perry) Oh, I didn't see him there.
Buford: You're dead to me!
Buford: I'm firin' you as my nerd.
Jeremy: Hey guys.
Phineas: Alright ladies, let's do a run through!
Doofenshmirtz: Ah you know Perry the Platypus, uh, you can just let yourself out. I...I may be a while.
Candace: Your ship?
Buford: And I was right, until I wasn't.
Doofenshmirtz: Ex-leaders of the Tri-State Area, I have called you here to help ease the citizens into this exchange of power.
Phineas: ♪Space Adventure, it's an adventure in space!♪
Candace: It has to be around here somewhere!
Phineas: Ha, good one, Baljeet!
Linda: Of course. I'm sure he'll blend right in.
Ferb: Cowgirls and cowpokes, welcome to the Flynn-Fletcher Bros' Rodeo!
Girl 2: Hey, did you see that lonely girl?
Girl 1: Yeah, she was all by herself and singular.
Lemonade man: LEMONADE! IN YOUR FACE, ORANGE JUICE! BOO-YAH! THAT'S RIGHT, BOO! YAH! LEMONADE!
Doofenshmirtz: (Echo: Station Station Cookie Station)
Doofenshmirtz: (Echo: Space Space Cookie Space)
Buford: (Echo: Cheese Cheese Wombat Cheese)
Candace: But if anyone calls offering me a concert deal I'm takin' it!
Doofenshmirtz: Well, that gives us something to look forward to.
Doofenshmirtz: (after noticing Perry with a pair of scissors) And also scissors.
Suzy: I love you, Ducky Momo!
Clive: I know how you feel.
Doofenshmirtz: But... but... What? Those are my minions!
Candace: Find Candace, find Mom. Bust, bust, bust.
Doofenshmirtz: Ah, Perry the Platypus. I've been expecting you. Sit anywhere, Perry the Platypus, make yourself at home.
Jeremy: See ya after the set.
Guiserblint: City Hall Opera Gala is about to begin!
Guy: Pork Rinds, coming your way!
Buford: Nature just bends to your will, doesn't it?
Candace: Start the plane! Start the plane! Start the plane! Start the plane! Start the PLANE!
Linda: Candace, you've already used that one.