The present continuous tense, also called the present progressive tense, is used for actions happening now or in the future. To form the -ing form of the verb, if the verb ends in one vowel and one consonant, the consonant is doubled before adding -ing. If the verb ends in one vowel and one consonant plus e, the e is removed before adding -ing. For all other verbs, simply add -ing. The present continuous tense expresses an activity that is happening at the moment being spoken about.

1. PRESENT CONTONOUS

2.  Introduction
 Thepresent continuous tense (also called
the present progressive tense) is commonly
used in English for actions happening right
now, or in the future.

3. Subject BE -ING form
I am singing
You are singing
He is singing
She is singing
It is singing
We are singing
They are singing

4. How to make the -ING
Verb ending in... Examples
form
swim - swimming
Double the consonant,
one vowel + one consonant hit - hitting
then add -ING
get - getting
come - coming
Remove E, then add -
one vowel + one consonant + E lose - losing
ING
live - living
say - saying
[anything else] Add -ING go - going
walk - walking

5. THE PRESENT CONTINIOUS FORM IS FOR ACTIVITIES THAT
HAPPENED IN AT THE MOMENT THAT WE ARE SPEAKING OF
THEM
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/pcont1.htm

6. To play = playing
Nota:
1. Cuando el infinitivo termina en
consonante precedida de una vocal, la
consonante ultima se duplica.
To sit sitting

7. 2. Cuanto el infinitivo termina en –e muda
desaparece.
To write writing
3. Cuando el infinitivo termina en –ie cambia a
“y” + -ing.
To lie lying

8.  Comosujeto en una expresión.
Reading English is easier than speaking it.
 Enalgunas expresiones de prohibición.
No smoking.

9.  Seemplea para obtener la forma progresiva
de los verbos
I am reading a book.

10.  Cuandoa un verbo le sigue de forma
inmediata una preposición, se utiliza la
forma de gerundio.
After swimming I felt cold.
They hade difficulty in finding a parking
place

11.  Como complemento de un verbo.
His hobby is painting.
 Seutiliza frecuentemente después de los
verbos “to go” y “to come”.
Come sailing with us next Saturday.