"Using the teachings, skills and expertise I have gained through this course I’d like to produce..."
Do I need to add "I will have gained here" or rather not?
Even though skills are not yet acquired, to me it feels like now we are at the point after the class is taken not anymore here now. Adding will makes these using and will have a little contradictory to me in terms of time perspective.
What do you think?
If you have not yet finished the course and so are talking about skills you will gain in the future once the course is completed, use "will."
If you have already finished the course and so have gained all skills the course will provide you, that is more in the past so do not use "will."
I'd say either
...the skills I have gained in this course
or
...the skills I will gain in this course
They are close to interchangeable, in my opinion. I'd probably use the latter if the course hadn't started yet, and the former if I were partway through the course. Either would be correct, though.
You could add "so far" to make it clear with the former case that you haven't completed the course yet:
...the skills that I have gained so far in this course
"Using the teachings, skills and expertise I have gained through this course I’d like to produce..."
As skills are not yet acquired, the phrase
"I will have gained here"
should be better.
"Using the teachings, skills[,] and expertise I will have gained through this course[,] I’d like to produce..."
I have also suggested a comma after 'skills' and another after 'course'.
