Найдите в предложении герундий иопределите его функцию: What is the purpose of

Найдите в предложении герундий и
определите его функцию:




What is the purpose of going
there? Whats the purpose of his going there?
Im grateful for his helping
me. Im grateful for his having helped me.
We inform you of the banks
crediting your account with the sum of 100.
We inform you of crediting your
account with the sum of 100.We thank you for sending us your catalogues