Then read on. AMONG the most common questions asked by readers of MOE’s Question and Answer section (June 2001 – Feb 2012) were questions to do with present and past perfect tenses in English.

I have been singing all day. She has been reading. Some people have been in government since 1999. The lecturer has been teaching at UNILAG for eight years. He has been sleeping in the other room.

The present tense includes eventualities which may happen ... The only problem left is ordering. In English, tense dominates perfect which dominates progressive which dominates passive: (11). The ...