What is the past tense of fling?

(a)  

What is the past tense of ring?

(a)  

What is the past tense of sew?

(a)  

What is the past tense of burst?

(a)  

What is the past tense of string?

(a)  

What is the past tense of swell?

(a)  

What is the past tense of lead?

(a)  

What is the past tense of swing?

(a)  

What is the past tense of wring?

(a)  

What is the past tense of dwell?

(a)  

What is the past tense of bid?

(a)  

What is the past tense of cling?

(a)  

What is the past tense of sling?

(a)  

What is the past tense of sow?

(a)  

What is the past tense of stride?

(a)  

What is the past tense of tread?

(a)  

What is the past tense of strive?

(a)  

What is the past tense of slink?

(a)  

What is the past tense of be?

(a)