present perfect

[has/have + past participle]

Examples:

·I have seen that movie many times.

·Have you seen that movie many times?

·You have not seen that movie many times.

·Use 1 now before unspecified time

·We use the present perfect to say that an action that occurred at a time Unspecified before now. The exact time is not important. You may not Use the Present Perfect specific time
Example: I have seen that movie twenty times.

TEM 1 Experience
You can use the present perfect for descrivir experience. Also can be

used for a denial. Is not used to Descrivir a specific event.

·Example:

I have been in italy .-

means you have had the experience of being in italy.

TOPIC 2 Change Over TimeWe

often use the Present Perfect to talk about change that has happened over a period of time.

·Example:

You have grown since the last time I saw you.

TEM 3 Achievements
Used the present perfect in the list of the achievements of individuals. You can not mention one hour specified

·Example:

A man walked on the moon.

TEM 4 unfinished action was expected
Use this to say in a perfect Prayer than expected has not happened.

·Example:

Ana has not finished his homework.

TEM 5 multiple actions at different times
We use the present perfect to talk about different Actions that have occurred in

the past at different times

·Example:

I have been in italy five times.

for more information:

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/upperf.htm