let's go downstairs
let go downstairs
v v adv
let's go downstairs .
l ɛ t s WORD_BOUNDARY ɡ oʊ WORD_BOUNDARY d aʊ n s t ɛ ɹ z WORD_BOUNDARY
l e t ' s WORD_BOUNDARY g o WORD_BOUNDARY d o w n s t a i r s WORD_BOUNDARY