There are 9 Groups in a Precure Mashup Team!! (The 2021 team onward would never join any of those groups)
Wonder Girls Duology:
Wonder Prime
Wonder Beauty
Girls Squad Duology:
Joyful Girls Squad
Cutie Girls Squad
Team Girls Duology:
Harmonic Team
Angelic Team
Go Girls Crew Duology:
Go Cheerful Crew
Go Sweetie Crew
Standalone:
The Infinity
Max Heart:
Nagisa Misumi/Cure Black-Wonder Prime
Honoka Yukishiro/Cure White-Wonder Beauty
Hikari Kujou/Shiny Luminous-The Infinity
Splash Star:
Saki Hyuuga/Cure Bloom-Go Cheerful Crew
Mai Mishou/Cure Egret-Go Sweetie Crew
Yes 5 Gogo!:
Nozomi Yumehara/Cure Dream-Wonder Beauty
Rin Natsuki/Cure Rouge-Go Cheerful Crew
Urara Kasugano/Cure Lemonade-Go Sweetie Crew
Komachi Akimoto/Cure Mint-Harmonic Team
Karen Minazuki/Cure Aqua-Wonder Prime
Kurumi Mimino/Milky Rose-The Infinity
Fresh:
Love Momozono/Cure Peach-Go Cheerful Crew
Miki Aono/Cure Berry-Joyful Girls Squad
Inori Yamabuki/Cure Pine-Angelic Team
Setsuna Higashi/Cure Passion-Harmonic Team
Heartcatch:
Tsubomi Hanasaki/Cure Blossom-Wonder Prime
Erika Kurumi/Cure Marine-Cutie Girls Squad
Itsuki Myoudouin/Cure Sunshine-The Infinity
Yuri Taukikage/Cure Moonlight-Angelic Team
Suite:
Hibiki Hojo/Cure Melody-Joyful Girls Squad
Kanade Minamino/Cure Rhythm-Cutie Girls Squad
Ellen Kurokawa/Cure Beat-The Infinity
Ako Shirabe/Cure Muse-Wonder Prime
Smile:
Miyuki Hoshizora/Cure Happy-Wonder Beauty
Akane Hino/Cure Sunny-Angelic Team
Yayoi Kise/Cure Peace-Cutie Girls Squad
Nao Midorikawa/Cure March-Go Cheerful Crew
Reika Aoki/Cure Beauty-Wonder Prime
Dokidoki:
Mana Aida/Cure Heart-Angelic Team
Rikka Hishikawa/Cure Diamond-Wonder Beauty
Alice Yotsuba/Cure Rosetta-Cutie Girls Squad
Makoto Kenzaki/Cure Sword-Go Cheerful Crew
Aguri Madoka/Cure Ace-Joyful Girls Squad
Happiness Charge:
Megumi Aino/Cure Lovely-Go Sweetie Crew
Hime Shirayuki/Cure Princess-Joyful Girls Squad
Yuko Omori/Cure Honey-Wonder Prime
Iona Hikawa/Cure Fortune-Harmonic Team
Go Princess:
Haruka Haruno/Cure Flora-Wonder Prime
Minami Kaido/Cure Mermaid-The Infinity
Kirara Amanogawa/Cure Twinkle-Harmonic Team
Towa Akagi/Cure Scarlet-Go Sweetie Crew
Mahou Girls:
Mirai Asahina/Cure Miracle-Harmonic Team
Riko Izayoi/Cure Magical-Angelic Team
Kotoha Hanami/Cure Felice-Joyful Girls Squad
Kirakira Ala Mode:
Ichika Usami/Cure Whip-Harmonic Team
Himari Arisugawa/Cure Custard-Joyful Girls Squad
Aoi Tategami/Cure Gelato-Go Cheerful Crew
Yukari Kotozume/Cure Macaron-Go Sweetie Crew
Akira Kenjou/Cure Chocolat-The Infinity
Ciel Kirahoshi/Cure Parfait-Wonder Beauty
Hugtto:
Hana Nono/Cure Yell-The Infinity
Saaya Yakushiji/Cure Ange-Angelic Team
Homare Kagayaki/Cure Etoile-Go Sweetie Crew
Emiru Aisaki/Cure Macherie-Cutie Girls Squad
Ruru Amour/Cure Amour-Joyful Girls Squad
Star Twinkle:
Hikaru Hoshina/Cure Star-Angelic Team
Lala Hagoromo/Cure Milky-Cutie Girls Squad
Elena Amamiya/Cure Soleil-Go Cheerful Crew
Madoka Kaguya/Cure Selene-Wonder Beauty
Yuni/Cure Cosmo-Harmonic Team
Healin' Good:
Nodoka Hanadera/Cure Grace-Cutie Girls Squad
Chiyu Sawaizumi/Cure Fontaine-Go Sweetie Crew
Hinata Hiramitsu/Cure Sparkle-Wonder Beauty
Asumi Fuurin/Cure Earth-The Infinity