I have a question regarding ending Mutah marriage:

1) What should I recite to end the marriage before the period is over

2) Can it be recited in Arabic only or is it permitted in other languages?

3) Should the mutah wife hear the recitation or can I recite it and end the marriage without her knowing?

1- You say to her: I gift to you the remainder of the Aqed وهبتك باقي المدة
2- It does not have to be in Arabic
3- She doesn’t have to be present. You can relieve her from the remainder of the Aqed and inform her that you have relieved her. Bust you must inform her. You cannot leaver her hanging.