Looking on the internet deeply has found these results:

in my duty is the most popular phrase on the web.

In my responsibility 15,160,000 results on the web	in my duty 15,320,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I would be derelict in my duty if I didn't point out this might be exactly what's happening to you. I failed in my duty. I believe in my duty to my job... Then there are four important steps. I would be failing in my duty if this were not brought to your attention as this represents the quintessence of the entire yagna principle. If I fail in my duty, Now I would be derelict in my duty if I didn't point out that this might be exactly what's happening to you. It is because I have failed in my duty. But I won't fail in my duty as a citizen and a Fascist!

In my responsibility

15,160,000 results on the web

in my duty

15,320,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I would be derelict in my duty if I didn't point out this might be exactly what's happening to you.
I failed in my duty.
I believe in my duty to my job...
Then there are four important steps. I would be failing in my duty if this were not brought to your attention as this represents the quintessence of the entire yagna principle.
If I fail in my duty,
Now I would be derelict in my duty if I didn't point out that this might be exactly what's happening to you.
It is because I have failed in my duty.
But I won't fail in my duty as a citizen and a Fascist!