The pairs English keeps mixing up

think vs sun “th” against “s” think vs top “th” against “t” think vs fun “th” against “f” think vs chair “th” against “ch” this vs dog “th” against “d” this vs zoo “th” against “z” this vs van “th” against “v” water vs van “w” against “v” bed vs van “b” against “v” ship vs banana “ih” against “uh” ship vs sheep “ih” against “ee” apple vs ten “a” against “eh” cup vs father “uh” against “ah” red vs leg “r” against “l” sing vs nose “ng” against “n” jump vs vision “j” against “zh” chair vs shoe “ch” against “sh” shoe vs sun “sh” against “s” vision vs zoo “zh” against “z” zoo vs sun “z” against “s” yes vs jump “y” against “j” banana vs cup “uh” against “uh” book vs moon “oo” against “oo” boat vs law “oh” against “aw” day vs ten “ay” against “eh” bird vs ten “ur” against “eh” apple vs cup “a” against “uh” dog vs top “d” against “t” bed vs pen “b” against “p” go vs cat “g” against “k” van vs fun “v” against “f” jump vs chair “j” against “ch”