For is used for a period of time eg a week, a day, the holidays
Since is used for a point in time eg 1984, last month, Christmas.
I have had this cold for 3 days. ( a period of time)
I have had this cold since Wednesday. (a point in time)
In present perfect tense, "for" is used to indicate the duration of an action that started in the past and continues into the present. For example, "I have been studying for three hours." On the other hand, "since" is used to specify the starting point of an action that continues until the present. For example, "I have been studying since 6 PM."
The present perfect tense is used to indicate that an action was completed at some point in the past, with a connection to the present moment. It is formed by using the auxiliary verb "have" or "has" followed by a past participle.
1. Jemariel has been playing chess since she was in high school.3. I have been finishing my work.4. I have been studying since yesterday.The sentences above are all present perfect continuous.Present perfect is ; Subject+have/has+past participle+objectWe have lived in Hamilton since 1999.My sister has worked in the cinema for two years.
The present perfect tense of the verb "to be" is "have been" or "has been," depending on the subject. For example, "I have been" or "he has been."
The present perfect progressive tense is used to indicate an action that began in the past, is still ongoing, and may continue into the future. It is formed by using "have been" or "has been" with a verb ending in -ing. For example, "She has been running for an hour."
The examples of a present perfect tense are those according to the following pattern: Subject + Have/has + verb in past participle As that we have: I have worked all day We have seen that movie before You have changed your ways in a huge manner He has never seen her Work and play around to see which other combination's you can get. The Brother has been improving since they recruited a new members. = present perfect continuous Jemariel Philline taja-on has been playing chess since she was in High School. = present perfect continuous The Cheetah has been the record holder for being the fastest animal in land.=not a good sentence. The cheetah is the record holder for the fastest animal on land. (not present perfect)
The present perfect tense is used to indicate that an action was completed at some point in the past, with a connection to the present moment. It is formed by using the auxiliary verb "have" or "has" followed by a past participle.
Present perfect.have gone is a present perfect verb phrasePresent perfect is have/has + past participle
Sure! "Star-crossed" can be written in present tense as "they are star-crossed."
The present perfect progressive tense is used to indicate an action that began in the past, is still ongoing, and may continue into the future. It is formed by using "have been" or "has been" with a verb ending in -ing. For example, "She has been running for an hour."
Models of atom are not perfect since they exhibit more features which are not present in model.Hence, an improvement is always required.
Just, yet, for, since, already, ever, never.
1. Jemariel has been playing chess since she was in high school.3. I have been finishing my work.4. I have been studying since yesterday.The sentences above are all present perfect continuous.Present perfect is ; Subject+have/has+past participle+objectWe have lived in Hamilton since 1999.My sister has worked in the cinema for two years.
No, it is not! The correct grammar is ...... 'since he joined' Hope this helped!
Present simple - I study mathematics. Present continuous - I am studying mathematics at university. Present perfect - I have studied mathematics for 3 years. Present perfect continuous - I have been studying mathematics since 2006. Present continuous (for future) - I am studying mathematics next year
There are two verbs in this sentence have borrowed = present perfect was = past
The present perfect tense of the verb "to be" is "have been" or "has been," depending on the subject. For example, "I have been" or "he has been."
The examples of a present perfect tense are those according to the following pattern: Subject + Have/has + verb in past participle As that we have: I have worked all day We have seen that movie before You have changed your ways in a huge manner He has never seen her Work and play around to see which other combination's you can get. The Brother has been improving since they recruited a new members. = present perfect continuous Jemariel Philline taja-on has been playing chess since she was in High School. = present perfect continuous The Cheetah has been the record holder for being the fastest animal in land.=not a good sentence. The cheetah is the record holder for the fastest animal on land. (not present perfect)