Here are some Present - Past pairs: Simple present - Simple past Present progressive - Past progressive Present perfect - Past perfect Present perfect progressive - Past perfect progressive (Simple) Future (of the Present) (will) - ( Simple)

Magic79 wrote: 1. While he had been reading the book , his uncle came back. past perfect progressive + simple past What do you think of the following sentence: a. While he was reading the book , his uncle came

Pemmican wrote: As far as I know, there are these 13 tenses: a) Past Perfect Progressive ........................had been + present participle b) Past Perfect ..........................................had + past participle c) Past Progressive

Technically, there are two tenses: Present (or Non-Past) and Past. There are four aspects derived from two aspect pairs (simple vs. perfect and simple vs. progressive): Simple, Perfect, Progressive, and Perfect Progressive Combining these

>We told Sharon that her comments didn't really relate to the key issues at hand. is correct. I think, the direct speech sentence is in simple present: "Your comments don't relate to the key issues." When the "introduction"part of a