The Present Perfect is a tense used to talk about completed actions which have occurred in the past which are connected to the present and still have effects on it.
The Interrogative form is used to ask questions.
The Interrogative form of the verb “to work” has this structure:
Auxiliary verb “to have”+ subject + past participle* + (?) (“has” for third person singular).
|AUXILIARY VERB||SUBJECT||PAST PARTICIPLE*||QUESTION MARK|
- Results in the present
- Have I lost my car keys?
- Has he put on weight?
- Have we done our homework?
- Finished actions referring to life experiences
- Have I been to Montenegro four times?
- Have we ever eaten snails before?
- Have they ever been to Chicago?
We use the Present Perfect to talk about:
- Past situations with results in the present;
- Life experiences.
We use the Present Perfect to talk about completed actions which have occurred in the past which are connected to the present and still have effects on it. When used in its Interrogative form, we can use it to form questions.
The Present Perfect in its Interrogative form has this structure:
Auxiliary verb “to have”+ subject + past participle* + (?) (e.g. Have you worked?) (“has” for third person singular).
*The past participle indicates past or completed actions. It is formed by adding -d or -ed, to the base form of regular verbs.
—“Has it rained the whole morning?” = We use the Present Perfect because we need information about a finished action which happened in the past that still has effects on the present, for example in this case the subject asks information about the weather because he imagines that the wet streets are an effect of the rain.
> “Did it rain the whole morning?” = We use the Past Simple because we ask about a finished past action without the need to emphasize its effects on the present.
NOTE: Irregular verbs have different fixed forms which need to be studied by heart. The past participle is usually used to form the perfect tenses.
Let’s revise this content within the [Form] section. Take a look at the [Example] section that shows its use within a context.