AT
Horas = AT TEN O’CLOCK
Período do dia = AT NIGHT
Fim de semana (BrE) = AT THE WEEKEND
Feriados = AT CHRISTMAS, AT EASTER etc.
ON
Dias = ON MONDAY, ON NEW YEAR’S EVE, ON HER BIRTHDAY
Períodos do dia = ON FRIDAY AFTERNOON
Fim de semana (AmE) = ON THE WEEKEND
IN
Períodos do dia = IN THE MORNING, IN THE AFTERNOON, IN THE EVENING
Peses = IN DECEMBER
Estações do ano = IN THE WINTER
Anos = IN 1998
Século = IN THE NINETEENTH CENTURY
AT
Ponto (geralmente locais públicos) = AT HOME, AT SCHOOL, AT THE BUS STOP, AT THE AIRPORT, AT A PARTY, AT WORK etc.
Endereço completo = AT 138 CHESTNUT ST., AT 90 BURNHILL RD., AT 179 PARK AVE etc
ON
Superfície ou linha = ON THE TABLE, ON THE ROAD, ON THE RIVER, ON AN ISLAND, ON A PAGE, ON MAIN STREET etc.
Transporte público = ON THE BUS, ON THE PLANE, ON THE SUBWAY, ON THE TRAIN etc.
IN
Dentro = IN THE HOUSE, IN THE KITCHEN, IN AFRICA, IN PARIS, IN THE MIRROR, IN THE CAR, IN BED etc
