Present Perfect Continuous Tense Interrogative Formula

Signal words for two hours for how long since morning since structure formula subject has have been base form ing i have been travelling.
Present perfect continuous tense interrogative formula. Verbs without continuous forms. Present perfect tense sentences 50 examples of affirmative negative interrogative sentences. Formula for affirmative sentences. She s known robert since she was a child.
The present perfect tense is used to express a past event that has happened at an unspecified time where the exact time is not known and also is not necessarily completed. The formula for interrogative sentences in present perfect continuous from is has have subject been ing form of verb time frame. So in order to show this kinds of situations in english grammar we use present perfect tense because when an action happened in the past but it has a relation with present which in this case take breakfast at 12 00pm in past and someone offered in present at 12 15 when the stomach is full. For better understanding about how to use the form of verb in present perfect you can learn past participle.
This tense express an action that started in past and continued to present or recently stopped. Future perfect continuous tense is used to express the ongoing action that will be completed in future before a certain time. For example i will have been studying in this college for one year. I ve heard a lot about you recently.
I ve wanted to visit china for years. Present perfect continuous tense present perfect progressive tense is used to express the action or task that started in the past and continues in present. Signal words for the last two days all day long for the last three hours structure formula positive sentences subject will have been present participle ing form time reference examples of. A time reference is also used in the sentence to show that when the action started in past or for how long the action continued.
Know hate hear understand want. In the following exercises we will go through the positive negative and interrogative forms of the present perfect tense with the help of structure formula and simple examples. Present continuous or present progressive tense is used to describe the action that is taking place at the time of speaking. It is used to state an ongoing action that has started at a point in the past.
I ve hated that music since i first heard it. Positive sentences in the present perfect tense can be expressed in two forms subject auxiliary verb main verb object. Subject is am are present participle object. The present perfect in its interrogative form ask about completed actions which have occurred in the past are connected to the present and still have effects on it you can also find it in affirmative form the verb confirms and interrogative form the verb is used to ask.
In present continuous tense we use present participle.