Rules the verb progressive.

4· If a verb finishes with different letter, in some cases, adds other letter according to its ending for instance:

To let---letting.

To quit---quitting.

5·If a verb finishes with the “L” letter, adds other “L”, plus “ing”, for instance:

To feel---feelling.

To steal---stealling.

Full name: Gabino Osorio Monica

Speciality: Informatica.

Written source:

                      Book: LET’S SPEED UP.

                                   H.Q Mitchell

                        Page: 111.