http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
在《PONS词典》中的词汇
 
  
 | I | coo | 
|---|---|
| you | coo | 
| he/she/it | coos | 
| we | coo | 
| you | coo | 
| they | coo | 
| I | cooed | 
|---|---|
| you | cooed | 
| he/she/it | cooed | 
| we | cooed | 
| you | cooed | 
| they | cooed | 
| I | have | cooed | 
|---|---|---|
| you | have | cooed | 
| he/she/it | has | cooed | 
| we | have | cooed | 
| you | have | cooed | 
| they | have | cooed | 
| I | had | cooed | 
|---|---|---|
| you | had | cooed | 
| he/she/it | had | cooed | 
| we | had | cooed | 
| you | had | cooed | 
| they | had | cooed | 
 
  
 