Question

Ishaan is arriving chicago tomorrow 2o'clock

Answer 1

Ishaan is arriving in Chicago tomorrow at 2 o'clock.

In, on, at are prepositions. A preposition is a word which links a noun, pronoun or noun phrase to some other part of the sentence. It is used to show location, time or direction, or to introduce an object.

Answer 2

I guess we need to add words to make it meaningful .

The correct sentence after adding would be : -

Ishaan is arriving in Chicago tomorrow at 2 o'clock .

We added two prepositions in, at.