The past of (lose)

(a)  

The past of (swim)

(a)  

The past of (run)

(a)  

The past of (say)

(a)  

The past of (know)

(a)  

The past of (tell)

(a)  

The past of (see)

(a)  

The past of (win)

(a)  

The past of (think)

(a)