Tenses/Gerunds/Infinitives in Graphs

Tenses/verbs

1. Production started  (climb) steadily but  (flatten) off at a level of around 70. Since then, it  (fall) steadily.

2. Production  (grow) more and more rapidly over the first three quarters but then  (reach) a peak. Since then, it (drop) quickly . 

3. Production  (grow) rapidly in the first quarter, but  (reach) a plateau of about 70. Since then it  (remain) more or less stable. 

4. Production  (drop) slowly but steadily over this year.

5. Production  (start) the year in a stable position, but then  (plunge) in the third quarter. It  (now flatten) out at a level of 20. 

6. Production (fall) considerably over the first three quarters,  (reach) a low of 20. Since then it  (stage) a partial recovery. 

7. Production  (fluctuate) all this year. 

 8. Production  (start) off steady, but  (fall) sharply in the last quarter.  

9. Production  (show) a marginal rise in the first three quarters, but then  (suffer) a sharp drop. 
10. After a considerable drop in the first two quarters, production  (bottom) out at 20. Since then it  (start)  (rise). 

11. Production  (experience) a strong, steady growth over the whole year. And it still  (not/change) its pace.  

12 . There  (be) a slight increase in production over this year. 

13. There  (be) a rapid drop in production in the first quarter, but it  (bottom) out at about 20 later.