 
  
 I. tread <pt trod, past part trodden or trod> [美 trɛd, 英 trɛd] 动词 不及物动词
1. tread (step):
2. tread (handle situation):
3. tread (go):
II. tread <pt trod, past part trodden or trod> [美 trɛd, 英 trɛd] 动词 trans
1. tread (crush):
2. tread (make):
III. tread [美 trɛd, 英 trɛd] 名词
1. tread C or U:
2. tread C or U (molding):
| I | tread | 
|---|---|
| you | tread | 
| he/she/it | treads | 
| we | tread | 
| you | tread | 
| they | tread | 
| I | trod / 美 也 treaded | 
|---|---|
| you | trod / 美 也 treaded | 
| he/she/it | trod / 美 也 treaded | 
| we | trod / 美 也 treaded | 
| you | trod / 美 也 treaded | 
| they | trod / 美 也 treaded | 
| I | have | trodden / trod | 
|---|---|---|
| you | have | trodden / trod | 
| he/she/it | has | trodden / trod | 
| we | have | trodden / trod | 
| you | have | trodden / trod | 
| they | have | trodden / trod | 
| I | had | trodden / trod | 
|---|---|---|
| you | had | trodden / trod | 
| he/she/it | had | trodden / trod | 
| we | had | trodden / trod | 
| you | had | trodden / trod | 
| they | had | trodden / trod | 
 
  
 