Please kindly make two sentences from INFREQUENCY FOR ME .
Kindly do the work yourself. If this is homework, we cannot help at all. If not, write two sentences yourself and we will see if you are using it correctly.
I assume you mean "make two sentence using "infrequency". It is impossible to make two sentences from the word "infrequency".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.