ĐỀ: We (learn ) E this time last week
$\text{We were learning English this time last week}$
1. were learning (this time last week-> quá khứ tiếp diễn)
ĐỀ: This is the first time I (be) here
$\text{This is the first time I have been here}$
2. have been (this is the first time-> hiện tại hoàn thành)