اوایل اسفندماه 1397، شرکت مخابرات از سرویس اینترنت پرسرعت VDSL رونمایی کرد و ارایه سرویس آن در برخی مناطق تهران آغاز شده است. اکنون، سوال اساسی...

1 grammar Can and could are modal auxiliary verbs (see modal auxiliary verbs: introduction-354). a There is no -s in the third person singular...

1 use When we join two or more grammatically similar expressions, we usually put and before the last. bread and cheese We drank, talked and...

forms was/were + -ing I was working. Were you listening to me? She was not trying. For details of question structures, see questions 1: basic...

Is Kim Jong Un dead? From late 2010, Kim Jong-un was viewed as heir apparent to the leadership of North Korea, and following the elder Kim’s...

Need Need is a semi-modal verb because in some ways it is like a modal verb and in other ways like a main verb. We use need mostly in the negative...

double use of relative pronouns Note that relative pronouns have a double use: they act as subjects or objects inside relative clauses, and at the...

present progressive: forms ami are! is + -ing I am waiting. Are you listening? She isn’t working today. For double letters in words like sitting...

Before an infinitive, we usually use agree, not accept.I agreed to meet them here. (More normal than I accepted to meet…) For more information...