"Were" is the past tense of "are," while "have been" is the present perfect tense of "be." Were stands alone and doesn't require an auxiliary verb. Have been, by its nature, requires the auxiliary verb "have" (or "has" for third person singular). ...
I have a curiosity regarding the sentence: ‘Nicole has been working hard to improve her grades at school.’. If it were to write “is working” instead of “has been working,” therefore using the present continuous tense, would that change its meaning somehow? Aren’t both of the sent...
Background: Group sex has been commonly reported among gay and bisexual men who have sex with men (GBMSM); however, there are limited studies on the factors associated with participating in group sex. Setting: A cross-sectional study among GBMSM attending a sexual health clinic in Melbourne,...
However, few data on sex frequency have been reported for men who have sex with men (MSM). Data from an Internet survey of MSM were used to describe sex frequency with most recent main and casual male partners and to estimate factors associated with higher sex frequency. Among 5,193 MSM,...
I have been going to ballet class since I was five. When Do You Use "Was Having" or "Had Been Having"? If someone began owning or experiencing something in the past, and this was still happening when another event occurred, usewas / were having, like this: ...
ive been waiting for ive been worried moni ive done all i can th ive done this ive gone mad ive got a feelinin my ive got a great idea ive got a pain in my ive got balls of stee ive got faith to beli ive got it ive got a ive got nothing to pr ive got someone waiti ive ...
Have you ever been to Paris? (in your whole life) 还有的句子上下文都不会给出过去的这个具体时间段,而是隐含在句子中,例如: Were you ever in a sorority? 你参加过女生联谊会吗? of course. 当然。 这里上下文虽然都没有指出ever是指过去到现在,还是仅指过去的一个时间段,但女生联谊会是高校女生在学校...
Context: Incidence of human immunodeficiency virus (HIV) in the United States has not been directly measured. New assays that differentiate recent vs long-... Hall,H Irene - 《Jama》 被引量: 5196发表: 2008年 New Data from the Addiction Severity Index Reliability and Validity in Three Centers...
Data from 307 young migrant men who have sex with men (MSM) in Beijing were analyzed to examine bisexual behavior and the associated sociodemographic and behavioral factors among Chinese young migrant MSM. More than one-fourth (27%) of the MSM were also concurrently engaged in sexual behavior ...
and it does not matte and it feels like you and it frail and it has been and it helps your par and it hurts so much and it involves and it kills you to a and it may get colder and it might not be w and it s almost and it shall come to and it shall come to and it shall...