A clever dog has learned to 'talk in sentences' to her owner using buttons she presses to ask for food, walks and her ball in a fascinating clip.

Dog owner Christina Hunger, 26, taught her her pet Stella to use a special customized keyboard which she taps with her paws to sound what she wants to say.

The a speech-language pathologist from San Deigo created the buttons herself and the results have proved incredible.

Dog owner Christina Hunger, 26, taught her her pet Stella to use a special customized keyboard which she taps with her paws to sound what she wants to say

In the clip, Stella - an 18-month-old Catahoula/Blue Heeler mix - wanders over to a button, where she presses 'happy', 'ball', 'want' and finally 'outside' before she rushes over to the front door wagging her tail.

Miss Hunger says: 'Happy ball want outside? Alright, you can go outside and play with your ball.'

Stella can also tell her owners when she is hungry, wants to go for a walk or even when she would like a belly rub.

Stella knows an astonishing 29 different words so far and Miss Hunger, who has started an Instagram and YouTube channel dedicated to her sentences, says she picks up new words quickly.

In the clip, Stella - an 18-month-old Catahoula/Blue Heeler mix - wanders over to a button, where she presses 'happy', before 'ball', 'want' and finally 'outside'

Miss Hunger started teaching Stella the words when she was just an eight-week-old puppy and says she can even respond to questions

The clever dog's most impressive progress came when she pressed buttons to say she missed Miss Hunger's fiancé Jake.

Stella typed 'want' 'Jake' and 'come' and when her fiancé arrived home, Stella pressed 'happy' much to their amazement.

Miss Hunger started teaching Stella the words when she was just an eight-week-old puppy and says she can even respond to questions.

Stella rushes over to the the front door wagging her tail after her sentence

Stella can also tell her owners when she is hungry, wants to go for a walk or even would like a belly rub

She can even use the buttons when she is feeling distressed - Miss Hunger said when she heard a noise she pressed 'look' nine times before 'come outside'.

'I'm in constant amazement and shock,' Miss Hunger told PEOPLE. 'Every day she says something cooler than she said the day before.'

'The way she uses words to communicate and the words she's combining is really similar to a two-year-old child,' Miss Hunger said, who uses the same the same techniques on the children she teaches to communicate.

And Miss Hunger says Stella's favourite word to use is 'beach'. 'She loves saying 'beach.' She was so happy and still says it very often,' she said.