Examples :

• Definition of I'ma (onlineslangdictionary.com)
  

  • (pronoun) I'm going to / I'm about to.

    I'ma go ta da movies.

  • Contraction of "I'm going to"

    I'ma leave now.
    
    

• Contractions (openlearningcenter.com)
  Positive Contractions | Negative Contractions | Other Contractions

• Informal Contractions (openlearningcenter.com)
  ex : "Whatcha gonna do?" / "Wanna beer?"

• Informal Contractions : gimme - gonna - lemme - wanna - whatcha - ya... (englishclub.com)

Listening :

• Entendre les formes contractées (evaeaston.com)

INTERACTIVE exercises :

• "S" a contraction with several possible meanings :
  " Where's the soup? "s"=is
  The little girl's got curly hair. "s"= has
  The little girl's eyes are black. "s" can't be changed."
  - Activity created by: Renée Maufroid

  

• Les contractions, savoir les écrire (teachersandfamilies.com)

• Informal Contractions : gimme - gonna - lemme - wanna - whatcha - ya... (englishclub.com)
  
  

Songs :

• Travie Mccoy - Billionaire : LYRICS + VIDEO
  "I wanna be a billionaire so fricking bad
  Buy all of the things I never had
  Uh, I wanna be on the cover of Forbes magazine
  Smiling next to Oprah and the Queen"
  (directlyrics.com)

  

• THE TWO - I wanna be with you again  (YouTube) + the LYRICS (onlylyrics.com)

  

• No Stress by Laurent Wolf
  (YouTube)
  + the LYRICS :
  "I don’t wanna work today..
  Nothing's gonna cause me distress...
  I don't wanna waste my time
  I don't wanna feel distress.
  It’s not that I’m lazy
  I think I’m just crazy
  Not depressing"
  (paroles-musique.com)