Present perfect

We use present perfect to...

• talk about an action that progressed in the past

• talk about a past experience

• talk about a present action

• talk about a past action without being specific 

I haven´t eaten breakfast...

• yet

• already

I have done the dishes...

• yet

• already

I haven´t gone to the supermarke...

• yet

• already

Marny ... worked for this enterprise before.

• have

• has

My parents ... traveled to Australia.

• have

• has

Mr Rogers ... played in many bands.

• have

• has

I haven´t ... Mrs. Kelly today

• saw

• seen

We have just... cleaning the house.

• finished

• finish

Have you ... your chores yet?

• did

• done