Hasn't been reading have they been learning haven't been driving has been walking has been digging
had been chatting had been waiting had been sitting had been jogging, got had been waiting, arrived
will have been dancing will have been cooking will have been working will have been studying will have been renovating
by the end of next month i will have been learning right for 6 years i had been writting the letter for 2 hours when my brother came from work to the moment we waked him up he had been sleeping for 12 hours she has been studying french for 11 years
Hasn't been reading have they been learning haven't been driving has been walking has been digging
had been chatting had been waiting had been sitting had been jogging, got had been waiting, arrived
will have been dancing will have been cooking will have been working will have been studying will have been renovating
by the end of next month i will have been learning right for 6 years i had been writting the letter for 2 hours when my brother came from work to the moment we waked him up he had been sleeping for 12 hours she has been studying french for 11 years
2 the trials are going to be approved by an independent ethics committe