The rule for the Affirmative form applies in the Interrogative, too.
There are 12 main tenses in English: simple present, present continuous, present perfect, present perfect continuous, simple past, past continuous, past perfect, past perfect continuous, simple future, future continuous, future perfect, and future perfect continuous.
"Have" can be in various verb tenses based on the context, such as present simple (have), present continuous (having), past simple (had), past continuous (was/were having), present perfect (have had), and past perfect (had had).
The general present tense is "Recall". Simple present is "Recalls". Present continuous tense is "Am/is/are recalling". Present perfect tense is "has/have recalled" and present perfect continuous tense is "Has/have been recalling". The general past tense is "recalled". Simple past - "Recalled". Past continuous- "Was recalling/ were recalling". Past perfect - "Had recalled". Past perfect continuous- "Had been recalling".
All the tenses of the Indicative Mood have a Simple/Continuous (Progressive) pair: Present, Past, Present Perfect, Past Perfect, Future, Future Perfect. You might look up the Simple ASPECT; otherwise, please specify the tense you are interested in.
The simple past tense is used to describe a completed action that happened at a specific time in the past. The present perfect tense is used to describe an action that started in the past and has relevance to the present moment.
Present perfect tense.
Technically, two (present and past) but commonly, we say there are 12: past simple present simple future simple past continuous present continuous future continuous past perfect present perfect future perfect past perfect continuous present perfect continuous future perfect continuous
There are 12 main tenses in English: simple present, present continuous, present perfect, present perfect continuous, simple past, past continuous, past perfect, past perfect continuous, simple future, future continuous, future perfect, and future perfect continuous.
The 14 English verb tenses are, present simple, present continuous, past simple, past continuous, present perfect, present perfect continuous, past perfect, past perfect continuous, future simple, future continuous, future perfect, future perfect continuous, conditional continuous, and conditional perfect.
This sentence cannot be completely changed into present perfect tense. Past perfect and past simple are used like this to talk about two things in the past one thing - past perfect happened before the other - past simple. Present simple is not used this way. So the past perfect - had taken - can be changed, but the past simple - my sister entered - cannot be changed into present perfect. Present perfect = I have taken my food.
"Have" can be in various verb tenses based on the context, such as present simple (have), present continuous (having), past simple (had), past continuous (was/were having), present perfect (have had), and past perfect (had had).
Clean is not past perfect. It's present simple. The past perfect tense of clean is had cleaned.
there are 12 verb tenses not only five. present, past, future. simple-- continuous--perfect-- perfect continuous.
The general present tense is "Recall". Simple present is "Recalls". Present continuous tense is "Am/is/are recalling". Present perfect tense is "has/have recalled" and present perfect continuous tense is "Has/have been recalling". The general past tense is "recalled". Simple past - "Recalled". Past continuous- "Was recalling/ were recalling". Past perfect - "Had recalled". Past perfect continuous- "Had been recalling".
All the tenses of the Indicative Mood have a Simple/Continuous (Progressive) pair: Present, Past, Present Perfect, Past Perfect, Future, Future Perfect. You might look up the Simple ASPECT; otherwise, please specify the tense you are interested in.
Simple past tense. Past perfect tense. Past perfect continuous tense. Past continuous tense.
I founded is simple past. I have founded is present perfect. I had founded is past perfect. I would have founded is conditional perfect. I had founded is past perfect subjunctive. It all depends where you want to put the word.