Present Simple vs. Present Perfect
There are similarities and differences between present simple and present perfect, which might cause confusion.
What Are Their Differences?
While the two both talk about the present time, present simple tense tends to talk about routines while past perfect tense tends to talk about events and actions that have just been fulfilled.
Uses and Comparison
1. Talking about Routines
As mentioned earlier, present simple tends to talk about routines. By routines, we mean actions and events that continue happening at a specific time. These routines can be going to the gym, brushing teeth every morning, or even going for a walk every night.
She
Here, the speaker is talking about a routine that the subject tends to follow every day.
She
Here, the speaker is saying that the subject has completed the act of going to the gym.
2. Recently Completed Actions
Present perfect, however, talk about actions that have just been finished. Take a look at the following examples:
I
Here, the speaker states that they have taken the train to the office and now they are done with the actions.
I
Here, the speaker is talking about a routinely action that they tend to do.
3. Stating Facts
The simple present tense can also be used to talk about general information or facts. For example:
Hummingbirds
Here, we are stating a scientific fact.
Hummingbirds has flown backwards as well.
This sentence fails to express any facts.
Koalas
This sentence expresses a scientific fact.
Koalas has slept for up to 22 hours a day.
Instead of showing this sentence as a fact, it shows it as a normal statement.
4. On-going Actions
Present perfect tense can also be used to talk about actions that started in the past and are still in process in the present. Have a look:
He
The subject has been waiting for 2 hours and the wait is not over yet.
He waits for almost 2 hours.
Here, the sentence fails to show when the action started and if it is still continuing.
They
The subject has started working 4 years ago and is still working.
They work here for 4 years.
Here, the sentence fails to show when the action started and if it is still on-going.
5. Actions with Unspecified Time
Present perfect tense is used to talk about repeated actions in an unspecified period of time in both past and present.
I
This sentence show how an action has been done by the subject 3 times already.
I watch the series 3 times.
This sentence sounds more like a plan than an indicator of a repeated action.
She
This sentence shows how many times an action has been done by the subject.
She be to Paris a couple of times.
This sentence sounds more like a plan than an indicator of a repeated action.
Structure
Now we will go through the structure of these two tenses.
1. Present Simple Tense
1.1. Regular Verbs
The present simple form of almost every verb is very easy to create. It is simply the basic form of that verb. The 'almost' is about this exception with third-person singular. In this form, to make affirmative sentences, you need to add 's' to the main verb. Have a look:
I
He
We
She
1.2. Irregular Verbs
You have already heard about and used 'to be' and 'to have' verbs. These verbs are called 'irregular verbs' because they do not take on a certain pattern. Take a look:
I
My cat
2. Present Perfect Tense
The present perfect tense tends to follow a certain pattern: subject + have/has + past participle. As you can see, we use any subject, then we use the present tense of the auxiliary verb 'have' followed by the past participle of the main verb. Here are some examples:
I
She