Hi this is my first question here, and I checked the database for questions
like mine, but nothing came up.

Would it be grammatically correct to say

> もちろん、難しいことも、諦めたい時もあります。

My intention is to say

> Of course, difficult things and times when I wanted to give up existed too.

This is because I was taught that you could only put similar items in a
category if you were to use Aも、Bもあります such as ～ことも、～こともあります but I was
wondering if I could mix up things of different ”categories”.

I was also contemplating

> もちろん、難しいことも、諦めようと思ってこともあります。

Sorry if any are hideously and grammatically wrong. I am a beginner in the
Japanese language.
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2016-09-09T10:01:13.067
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2016-09-09T12:15:03.110
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question
grammar particle-も
Is it grammatically correct to say 難しいことも、諦めたい時もあります?
The first phrase is correct.

The latter one is most likely no something that you would like to say because
it doesn't establishes any connection between 「思って」 and 「こと」. You could say
「もちろん、難しいことも、諦めようと思って **いる時** もあります。」, though.
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2016-09-09T10:17:09.460
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answer
The first phrase is grammatically correct. However, as you say the
construction ～も～も sounds more natural if used with two things that are
comparable, even if they don't have exactly the same form. For example, you
could say

> 難しく感じること(orとき)も、｛諦めたい気持ちに/諦めたく｝なること(orとき)もあります。  
>  Of course, there are times when I feel that it's (too) difficult or that I
> want to give up.

where you juxtapose two feelings. (Your original sentences places "things"
next to "times".)

* * *

The second phrase is incorrect for purely grammatical reasons. You can't
modify こと with 思って. The verb has to be in the 連体形 _rentaikei_ form (identical
to the dictionary form); here either 思う or 思っている.

> もちろん、困難なときも、諦めようと思うこともあります。

The above comments about style also apply here. You could also say

> もちろん、「難しい」とか「諦めたい」などと思うこともあります。  
>  Of course, there are times when I just think "this is too difficult" or "I
> want to give up".
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2016-09-09T11:06:14.417
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answer