Dave's ESL Cafe's Student Discussion Forums

[Chan-Seung Lee]

[asterix]

They are all correct.

[Eric Thompson]

Dear Mr./Ms. Lee, As Asterisk says, they are all correct, but I say they are all technically correct, but most are not really used much. Your 2 series and 3 series are not really practical, not used much, too complicated. Concerning the 1 series, only 1-1 and 1-2 can really stand alone, without any additional phrase or clause. 1-3 and 1-4 should be followed by something like: 'since she arrived'. 1-5 should be followed by something like: 'when she finishes the course'. OK?