Ok, welcome back~
The second thing I can think of is: tense
There is no tense in Chinese. There is no "did" or "done", just "do". For example:
I called Jon Boy yesterday.
In Chinese, it will be like "I"+"yesterday"+"call"+"Jon Boy". If there was no "yesterday", "I called Jon Boy" is probably fine in English, depending on the context, which might be in the middle of a conversation, and suggests that "I _already_ called Jon Boy" . But "I"+"call"+"Jon Boy" will be confusing in Chinese, or more like a baby's talk. If there is no words (such as "yesterday") in a sentense suggesting time, there should be words like "already", "used to", or "will"(future tense is the similar).
I hope I am explaining clearly enough.
Thanks for watching and stay tuned.
Edit:This is simply random thoughts, nothing professional at all.