Different tenses. One is present tense. One is past tense. So, it would depend on whether the subject of the sentence is currently having difficult times or whether the difficult times are over.
6 ноября 2017 г.
0
0
0
"He is going through a difficult phase of his life" sounds a lot more natural to me.
5 ноября 2017 г.
0
0
Все еще не нашли ответы?
Напишите свои вопросы, и пусть вам помогут носители языка!