My spouse is currently in the process of applying for a partner visa, and she has been asked about the validity of my certificate of sponsorship for a skilled worker visa, which is valid for five years (01.01.2024 – 31.12.2028). However, her passport is set to expire at the end of the third year (01.01.2027). Given that the duration of the partner visa cannot be specified, with a 5-year default value, we are unsure if it's still possible to apply for the standard five-year visa, even though her passport will expire after the third year. We anticipate to move to the UK on 01.01.2024 in case everything run smoothly. Your guidance and assistance in clarifying this matter would be greatly appreciated. Thank you very much!