The correct spelling of the phrase "gat down basics" is actually "get down to basics". The word "get" is pronounced with a short e sound /ɛ/ and the letter t is used to indicate the stop consonant sound /t/. The word "down" is pronounced with a flat vowel sound /aʊ/ and the letter n is used to indicate the nasal consonant sound /n/. Lastly, the word "basics" contains the long a sound /eɪ/ and the letter s is used to indicate the voiceless fricative consonant sound /s/.