What is the difference in the usage between which and in which?

[aboushady]

What is the difference in the usage between which and in which?

[konungursvia]

They are similar, except "in which" shows the object in question as a container, and the action of the subordinate clause is then understood to happen inside it: "This is the stadium in which we played the football match."

[M-Qasim]

They are similar, except "in which" shows the object in question as a container, and the action of the subordinate clause is then understood to happen inside it: "This is the stadium in which we played the football match."

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