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will work works has worked is working
works will work was working has worked
having met to have met meeting to meet
have been planted were planted have planted had planted
a. It is astonishing the local actions of a small number of programmers can bring an entire Internet service to its knees, but that appears to have been the case. Who was responsible for the collapse of Twitter All its users. A malicious programmer in Russia. A small number of programmers. A user in neighboring Georgia,
he has already sold things in different parts of the world he has sold toys for some years he has already sold toys all over the world he has already sold things for some years
were organized had organized will organize have been organized
were organized had organized will organize have been organized
was ; studying will ; study has ; studied are ; studying
he has already sold things in different parts of the world he has sold toys for some years he has already sold toys all over the world he has already sold things for some years
Tens of thousands of Tens upon thousands of Tens in thousands Ten thousands of
long before before long long ago away from
was studying will study has studied are studying
was ; studying will ; study has ; studied are ; studying
he has already sold things in different parts of the world he has sold toys for some years he has already sold toys all over the world he has already sold things for some years
already wrote have already written had already written was already writing
100 years 145 years 1975 years Over two million years
have been planted were planted have planted had planted
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