In

The next 3 posts will be devoted to the usage of the following prepositions: in, on, at. Feel free to ask any questions in the comment section.

In
in + century e.g. in the twenty-first century
in + decade e.g. in the 1940s, in the nineties
in + year e.g. in 1987
in + season e.g. in the summer
in + month e.g. in September
in + parts of the day e.g. in the morning / afternoon / evening
in + continent e.g. in South America
in + country e.g. in Japan
in + state / province e.g. in Ontario
in + city e.g. in Berlin
in + building e.g. in the Empire State Building
in + room e.g. in the bathroom
in + clothing e.g. in a grey suit
in + language e.g. in French
in + book e.g. in the Beast and the Beauty
in + newspaper / magazine e.g. in the Financial Times
in + department e.g. in the legal department
in + field e.g. in computer science, in architecture

in my opinion
in the past / future
in the world
in a car / taxi
in trouble
in danger (of)
in part (=partially)
in front of
in the middle of
in line
in the process of
in the market (=trying to buy sth)