Past of buy

(a)  

Past of do

(a)  

Past of eat

(a)  

Past of give

(a)  

Past of have

(a)  

Past of lose

(a)  

Past of meet

(a)  

Past of say

(a)  

Past of understand

(a)  

Present of came

(a)  

Present of drank

(a)  

Present of found

(a)  

Present of knew

(a)  

Present of made

(a)  

Present of read

(a)  

Present of took

(a)  

Present of won

(a)  

Present of built

(a)  

Present of were

(a)