Si usa:
AT |
IN |
ON |
tempo preciso |
mesi, anni, secoli e lunghi periodi |
giorni e date |
at 3 o'clock |
in May |
on Sunday |
at 10.30am |
in summer |
on Tuesdays |
at noon |
in the summer |
on 6 March |
at dinnertime |
in 1990 |
on 25 Dec. 2010 |
at bedtime |
in the 1990s |
on Christmas Day |
at sunrise |
in the next century |
on Independence Day |
at sunset |
in the Ice Age |
on my birthday |
at the moment |
in the past/future |
on New Year's Eve |
Osserva questi esempi:
Fai attenzione! Ricordati di usare at nelle seguenti espressioni:
Espressioni |
Esempi |
---|---|
at night (di notte) |
The stars shine at night. |
at the weekend (nel fine settimana) |
I don't usually work at the weekend. |
at Christmas/Easter (a Natale/Pasqua) |
I stay with my family at Christmas. |
at the same time (contemporaneamente) |
We finished the test at the same time. |
at present (al momento, adesso) |
He's not home at present. Try later. |
Nota l'uso delle preposizioni in e on nelle seguenti espressioni:
in (parti del giorno) |
on (giorni della settimana) |
in the morning |
on Tuesday morning |
in the mornings |
on Saturday mornings |
in the afternoon(s) |
on Sunday afternoons |
in the evening(s) |
on Monday evening |
Se nella frase si usa last, next, every, this non si deve mettere at, in, on.