PAST PERFECT: 016:   Past Perfect Simple: I had done 017:   Past Perfect Continuous (I had been doing) 017:   Present Perfect, Past and Past Perfect : Review

PRESENT PERFECT SIMPLE vs PAST SIMPLE: 014:   Present Perfect Simple (I have done) or Past Simple (I did)? 015:   Present Perfect or Past Simple Revision

TIME EXPRESSIONS:  013:   How long have you (been) … ? 013b: How long, when, for, since 014:  Express the Time: When, How long, For, During, While, Since

PRESENT PERFECT: 009:   Present Perfect: I have done 010:   Present Perfect: I have done, about our life experience (2) 010:  Present Perfect until now … 010:   Present Perfect with SINCE and…

PAST: 006c: Past Simple: « to be »: I was 006d: Past Simple: « to do »: I did  007:   Past Continuous: I was doing …   007:   Past Continuous: I was doing, when we dont…