Gonna, gotta, wanna, outta, and kinda all represent words as they are pronounced in informal, spoken English. They should not be used in formal writing.
Gonna comes from going to:
- I’m going to buy a new mobile phone. (written)
- I’m gonna buy a new mobile phone. (spoken)
Gotta comes from got to:
- I’ve got to go now. (written)
- I gotta go now. (spoken)
Wanna comes from want to:
- I want to improve my English. (written)
- I wanna improve my English. (spoken)
Outta comes from out of:
- Get out of here! (written)
- Get outta here. (spoken)
Kinda comes from kind of. ‘Kind of’ is an informal expression meaning quite/rather:
- I was kind of angry when he left. (written)
- I was kinda angry when he left. (spoken)
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