作者：Leslieth Zapata 1 年以前
157
Present perfect / Past simple
Present perfect / Past simple
To give new information (general summary).
The Us space shuttle Atlants has returned safely to earth.
Use with today, this morning, this week etc. When these periods are not finished at the time of speaking.
I have shaved today.
Use for a state which has gone on up to the present.
She has been in the hospital for three days.
To talk about something happened in the past, but we don't specify when it has happened.
I have bought a new car.
Shows a relation between past time and present time.
My sister has written many books.
Have/has + subject + past participle ?
Has she eaten a lot?
Have you eaten a lot?
Subject + have/has + not + past participle
María hasn't eaten a lot.
I haven't eaten a lot.
Subject + have/has + past participle
María has eaten a lot.
I have eaten a lot.
Yet
So far
She has phoned me four time so far.
Since
She has worked since 2000.
Ever/never
He has never played golf before.
Subtopic
Use
To give the details.
It landed in Florida this morning.
Use with today, this morning, this week, etc. when these periods are finished at the time of speaking.
He didn't shave today.
Use for a state in the past in a period which is finished.
I was in the hospital for three days.
To indicate that something happened at a specific time in the past.
I bought a new car last week.
Talks about actions and events in the past that are now finished.
Shakespeare wrote many plays.
Interrogative
Did + subject + infinitive ?
Did she eat a lot?
Did you eat a lot?
Negative
Subject +did+not+ infinitive
She didn't eat a lot.
I didn't eat a lot.
Estructure
Subject + past simple
She ate a lot.
I ate a lot.
Clue words
Yesterday
She didn't play golf yesterday.
Ago
She phoned me two hours ago.
Last
My sister played soccer last friday.
