Recently I've seen some expressions on the Internet such as;

- I had difficulty 'in' finding a new job.
- Did you have any trouble 'with' translating the report?

Well..... I think these sentence should be;

- I had difficulty finding a new job.
- Did you have any trouble translating the report?
Am I wrong?

I've checked how to use difficulty/trouble with 'verb + ...ing", and in my grammer book these prepositions (e.g. in / with) are not used with those expressions. But I've checked them on the online dictionaries, and then some similar examples with prepositions appeared.

These are from Cambridge online dictionary.

- People with asthma have difficulty in breathing.
- [+ ing form of verb] She had great difficulty finding a job.

...... Now I'm really confused. I can't distinguish the diffrence between these two, I mean, when I should put the preposition 'in', and when I should not put it. Emotion: crying

Could you please explain about them for me?
Many thanks in advance,

Here's some advice. Don't use the prepositions (in, with) in these expressions. They add no special meaning to the same phrases without the prepositions. Just know that you may hear them or read them from time to time.
Thansks for the reply, CalifJim. Emotion: smile

So, when I make sentences, there's no need to add the prepositions such as 'in' or 'with' in these expressions. Thanks for your advice, I got it.

I'm sorry for asking again, but are the examples with prepositions that I've shown in my previous post grammatically correct? Also, in a daily English conversation, are they acceptable?

Many thanks for your help in advance.

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Personally, I would not be troubled at all by hearing "difficulty in -ing" in an everyday conversation. On the other hand, "trouble with -ing" would strike me as odd but acceptable in casual conversation. I might use "difficulty in -ing" myself once in a while, but it wouldn't occur to me to use "trouble with -ing".

My definition of "correct" is "suitable in context". In that sense, any of these, with or without the prepositions, are correct.
Many thanks for your reply.
I've come across 'troubel with -ing' on the Internet several times recently, so I thought it must be a very common expression in daily conversation......
Thanks for answering my question again, and many thanks for your help.
My apologies if I've understood the question wrong.

In the stucture "have trouble" the next word is normally a gerund.

I thought this was the only structure you were concerned with. However, now I think you were concerned with any use of "trouble".

In the structure "(That's) the trouble" the next word is normally "with", then a gerund. So that's why you found so many uses of "trouble with" when you Googled the phrase.

I have trouble understanding Latin.
That's the trouble with trying to learn too much too fast.
The trouble with going too early is that we'll have to wait when we get there.

"have problems" + gerund follows the pattern of "have trouble" + gerund.
"the problem with" follows the pattern of "the trouble with".

"(That's) the difficulty with" is also possible, but "trouble" and "problem" are more common.
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can i ask you this? sometimes i see people say : "i have no trouble to play with my kids". Is "no trouble+ to infinitive" right? please help me.