What's this for?

                                                          GRAMMAR

Infinitives and gerund for uses and purposes

Infinitives                                                                 Gerunds

I use my computer to send e-mails.                         I use my computer for sending e-mails.

Computers are often used to pay bills.                    Computers are often used for paying bills.

                         

                             

                                                                GRAMMAR



Imperatives and infinitives for giving suggestions

Be sure to turn it on.                                                     Remember to pay the bill every moth.
Make sure to hit the "end" button.                                Try not to talk for too long.