1.

• Greg always comes to parties.

• Greg would come to party later.

• Greg was unable to attend the party for only a moment.

• Greg would stay at the party for only a moment.

2.     

• The woman always rode her motorcycle to school.

• The woman was not coming to school today.

• The woman was an expert motorcycle rider.

• The woman did not know how to ride motorcycle.

3.

• The man was not a very good cook.

• The man never invited friends over dinner.

• The man would never invite him over for dinner.

• The man was an excellent cook.

4.   

• The woman had run more than three miles.

• The woman always got lots of exercise.

• The woman ran for three hours in the morning.

• The woman had not gotten much exercise.

5.

• He had been somewhere else.

• He had been in the library.

• He had been working on his research project.

• He would start working on his project in five hours.

6.   

• He had changed apartments.

• He did not like his new apartment.

• He was still in his old apartment.

• He had moved from a house to an apartment.

7.

• The woman did not like desserts.

• The woman ate sweets regularly.

• The woman would not share her chocolate cake.

• The woman had eaten his piece of cake.

8.   

• The man was going to study hard.

• The man already had a driver’s license.

• The man would not take the test.

• The man had already taken the test.

9.  

• She had registered in physics.

• She would go to physics class later.

• She had already taken a physics class.

• She had not enrolled in physics.

10.

• The pipes were not clear.

• The plumber would be late.

• The plumber had already cleared the pipes.

• The pipes did not need to be cleared.