Here is a sentence I wrote:
All he can do, as it turns out, is to stay by her side, take her to wherever he goes and hope someday she will wake up.
I added to ahead of take... in the first place, but my foreign teacher told me there was no need to do that.
Here is another one:
I won’t elaborate on his excellent judge of character or other things like willingness to take responsibility and to trust in his team here, determination and so on.
This time my teacher didn't tell me to delete the second to. I want to know if the second to is necessary? When should I keep the to ahead of the infinitive in a parallelism sentence and when not?