General Difficulty:
* Je les trouve difficiles: This is the most literal translation and is appropriate for general difficulty.
* Ils me semblent difficiles: This is a slightly more formal way of saying the same thing, implying that you find them difficult based on your perception.
Specific Difficulty (e.g., challenging task):
* Je les trouve difficiles à faire: This specifically means you find them difficult to *do* or *complete*.
* Ils me posent problème: This translates to "they pose a problem for me" and indicates that you're struggling with them.
Difficulty in Understanding:
* Je les trouve difficiles à comprendre: This is used when you find something hard to understand.
* Je ne les comprends pas bien: This means "I don't understand them well" and implies a lack of comprehension.
Difficulty in Relation to People:
* J'ai du mal à m'entendre avec eux: This means "I have trouble getting along with them" and refers to difficulty in interpersonal relationships.
Choosing the Right Phrase:
The best way to choose the right phrase is to consider the context of your statement. Are you talking about a specific task, a concept, or people?
Remember to adjust the phrase to fit the situation and make your meaning clear.