We're now doing a checkup for the present perfect tense.
We're going to do a lot of practice questions,
For this checkup, we'll take a look at the present perfect tense.
Which describes an action that happened at
an unknown or indefinite time in the past.
Let's look at the first sentence.
βShe _blank_ read that book.β
The subject in this sentence is βsheβ.
For he/she/it, in this tense we say, βhasβ.
But remember we need to use the past participle of the verb.
βreadβ and βreadβ are spelled the same.
The second sentence says, βThey _blank_ visit China.β
βvisitβ is the verb that you want to use here.
For βIβ, βyouβ, βweβ and βtheyβ, we use βhaveβ. Not βhasβ.
Now, what's the past participle of visit?
βThey have visited China.β
Next, βWe _blank_ see that concert.β
Again, for βIβ, βyouβ, weβ and βtheyβ β we use βhaveβ.
βWe haveβ. Now, the past participle of βseeβ is 'seen'.
βWe have seen that concert.β
Now, let's look for the mistake in the next sentence.
Take a look at the subject, βRickβ.
So instead of βhaveβ, we need to change this to βhasβ.
βSally and I hasn't finished work.β
The subject in this sentence is βSallyβ and βIβ.
The pronoun for that is βweβ.
βWe hasn't finished work.β
That still sounds weird, right?
We have to change this to βhave notβ or the contraction βhaven'tβ.
And finally, βI did go to the doctor.β
Now this sentence makes sense, but it's not the present perfect tense.
Remember, we use βhaveβ for the subject, βIβ.
What is the past participle of βgoβ?
βI have gone to the doctor.β
Great job. Let's move on to the next checkup.
In this checkup, we'll talk about the present perfect tense
and how it can be used to describe an action that started in the past and is still true today.
The first sentence says, βI _blank_ known Carly since 1994.β
And we already have the past participle of the verb, βknowβ.
The correct answer is βhaveβ.
For βIβ, βyouβ, βweβ and βtheyβ, we use βhaveβ after the subject.
βHe has been here _blank_ 2 p.m.β
Now the first part is all there.
However, remember that for the present perfect tense,
we use βforβ or βsinceβ to talk about how long that action has been true.
In this case, we use βsinceβ.
Because 2 p.m. is a specific period in time.
Next it says, βShe _blank_ liked Tom since June.β
And we have the past participle of the verb βlikeβ, which is 'liked'.
Again, we need βhaveβ or βhasβ.
Because the subject is βsheββ¦
Can you figure out which one you need?
The correct answer is βhasβ.
βShe has liked Tom since June.β
Now, I want you to find a mistake in the next sentence.
βI have worked here six months ago.β
βI have workedβ - that's correct.
However, in the present perfect tense, we don't use βagoβ.
This is talking about more the past.
We want to talk about βsinceβ or βforβ instead.
Now βsix monthsβ is not a specific time. So we don't use βsinceβ.
Instead, we talk about the duration. So we need βforβ.
We'll say, βI have worked here for six months.β
Let's take a look at the next sentence.
βJen have a cold for two weeks.β
At first glance, this doesn't seem that wrong.
But remember, Jen is a βsheβ.
But wait a minute, βJen has have a coldβ?
We need the past participle of βhaveβ.
The correct answer is βhadβ.
βJen has had a cold for two weeks.β
And finally, βWe haven't went home since Friday.β
βWe haveβ¦ have notβ. That's correct.
The contraction is βhaven'tβ. βWe haven'tβ.
Now the problem is, we have this verb βwentβ.
That's in the past simple tense.
We need the past participle of βgoβ.
The correct answer is βgoneβ.
βWe haven't gone home since Friday.β
Good job, guys. Let's move on to the next checkup.
In this checkup, we'll take a look at the present perfect tense.
And how it is used to describe an action that finished recently.
We'll be focusing on the words, βjustβ, βalreadyβ and βrecentlyβ to show this.
Let's take a look at the first sentence.
βShe has just _blank_ that book.β
And we're using the verb, βreadβ.
Remember, we take the subject, βsheβ.
And for βheβ, βsheβ and βitβ, we say βhasβ.
Now we need the past participle of βreadβ.
βShe has just read that book.β
You'll notice I use the word, βjustβ right before the past participle.
Next it says, βThey have alreadyβ and the verb is βwake upβ.
If the subject is βheβ, βsheβ, or βitβ, we use βhasβ.
But if the subject is βIβ, βyouβ, βweβ or βtheyβ, we use βhaveβ.
So that's correct. βThey haveβ.
Also we have the word βalreadyβ here to show that it happened recently
Now the verb is βwake upβ.
We need the past participle of βwake upβ,
βThey have already woken up.β
βWe have recently _blank_ work.β
βWe haveβ, that's correct.
And we have the word 'recently' to show when the action finished.
And now we need to find the past participle of the verb βfinishβ.
βWe have recently finished, -ed, work.β
Now try to find the mistake in the next sentence.
This sounds a little strange, right?
That's because βjustβ needs to come before the verb.
Therefore, the answer is βMorty has just eaten.β
The next sentence says, βKaren has recently be sick.β
And there we have βrecentlyβ.
Now we need the past participle of the verb.
βbeβ is our verb and the past participle of βbeβ is βbeenβ.
βKaren has recently been sick.β
And finally, βI have gone already to the dentist.β
This is similar to another question we looked at just before.
βI have gone already to the dentist.β
The placement of βalreadyβ is a little awkward.
So we can say, βI have already gone.β
So we can put βalreadyβ before the verb,
βI have already gone to the dentistβ
Or we can put this at the end,
βI have gone to the dentist already.β
That is the end of the checkup.
You just learned about the present perfect tense.
There was a lot to learn, but you did a wonderful job.
I know that It's hard, but you will get better with time, effort and practice.