Discourse means ‘pieces of language longer than a sentence’. Some words and expressions are used to show how discourse is constructed. They can...

Thinking about the past and present together We use the present perfect if we are thinking about the past and present together. We do not use the...

1- future, present, and past; simple, progressive and perfect English verbs can refer to future, present or past time, and for each kind of time...

causes and origins: Who gave you that?We normally use the present perfect when we are thinking about past events together with their present...