UK Defined Benefit Pension - Form 1116

I am now receiving my NHS and Teachers Pensions and need to report them on IRS tax returns.
I understand I need to use form 1116 - but it makes no sense to me! I've looked for examples to follow,  but can't find anything related to defined benefit pensions which are more like income.
Does anyone have experience of completing Form 1116 for defined benefit pension(s) or can anyone recommend an accountant who can file for us?
Many thanks.

Here is a list of possible tax preparers you can investigate if you are living in the UK.

https://talk.uk-yankee.com/index.php?topic=97064.0

Thank you.