The phrase "in the course" can be either a noun with a preposition or adverb. To determine the part of speech will help the consideration of the role that the noun phrase performs in the sentence.
Remember that in any case, regardless of part of speech, "in for" it is written separately.
Consider an example where the phrase "in for" a noun with a preposition. In this case, in the sentence we are talking about any object or phenomenon, which have tend to leak. For example, "in the river" or "over time".If you see a noun with a preposition, then be careful. Noun, as we know, tends to lean, that is, to change the ending. In combination with the preposition "in" word "for" is used in the prepositional case. In this case, this noun has the ending "and".
So, if the phrase is a noun with a preposition, how to write "during". For example, "over time there's something sacred".
Consider an example where the phrase "in for" is an adverb. To distinguish the adverb from the noun it is easiest if you try to share it with. Between a noun and a preposition is easy to substitute the dependent word (e.g., "in fast time" or "cool river"). The adverb is indivisible (for example, "in the course of the morning").The adverb "in for" always ends with "e". For example, In the course of the day several times I drank coffee".