Do x Take - Which one should be used?
For example:
To say that you're going to enroll in a course, you can use "to take";
- I thought I'd start taking a French course next week.
But would be okay if I said:
- I'm going to do a French course starting from tommorow.

What about textbooks? Let's suppose there's a textbook called RTK. Can I say:
- I took (studied and finished) this textbook in just 3 months.
- I took (studied and finished) the RTK in 5 months.
- You should start doing (to study using) the RTK first before starting to learn grammar.
- I found it easier to learn vocabulary after taking the RTK.
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Which of this sentences are correct?

Thanks in advance!

Question

Do x Take - Which one should be used?
For example:
To say that you're going to enroll in a course, you can use "to take";
- I thought I'd start taking a French course next week.
But would be okay if I said:
- I'm going to do a French course starting from tommorow.

What about textbooks? Let's suppose there's a textbook called RTK. Can I say:
- I took (studied and finished) this textbook in just 3 months.
- I took (studied and finished) the RTK in 5 months.
- You should start doing (to study using) the RTK first before starting to learn grammar.
- I found it easier to learn vocabulary after taking the RTK.
----------------------------------------------------------------------
Which of this sentences are correct?

Thanks in advance!

Answer

"But would be okay if I said:
- I'm going to do a French course starting from tomorrow."

Yes, that's fine. It's just slightly more casual than your other choice.

What about textbooks? Let's suppose there's a textbook called RTK. Can I say:
- I took (studied and finished) this textbook in just 3 months.
No, you can't say that. It's incorrect.

- I took (studied and finished) the RTK in 5 months.
Again, it won't make sense if you say this.

- You should start doing (to study using) the RTK first before starting to learn grammar.
Yes, you can say this but it is informal. As well, you need to say 'the RTK textbook/book' and not 'the RTK'.

- I found it easier to learn vocabulary after taking the RTK.
No, this is incorrect.

Answer

I'm going to do a French course...  is OK for conversation or casual writing but not for formal.  The next example is NOT OK unless RTK is some kind of a course.  Since a book can be taken i.e. hold in the hand, the meaning is literal and cannot be used figuratively as such.