1 : be
1 : was / were
1 : been
2 : become
2 : became
2 : become
3 : begin
3 : began
3 : begun
4 : break
4 : broke
4 : broken
5 : bring
5 : brought
5 : brought
6 : build
6 : built
6 : built
7 : buy
7 : bought
7 : bought
8 : come
8 : came
8 : come
9 : do
9 : did
9 : done
10 : drink
10 : drank
10 : drunk
11 : eat
11 : ate
11 : eaten
12 : fall
12 : fell
12 : fallen
13 : find
13 : found
13 : found
14 : fly
14 : flew
14 : flown
15 : give
15 : gave
15 : given
16 : go
16 : went
16 : gone
17 : have
17 : had
17 : had
18 : hear
18 : heard
18 : heard
19 : know
19 : knew
19 : known
20 : learn
20 : learned / learnt
20 : learned / learnt
21 : put
21 : put
21 : put
22 : see
22 : saw
22 : seen
23 : say
23 : said
23 : said
24 : take
24 : took
24 : taken
25 : write
25 : wrote
25 : written
26 : read
26 : read
26 : read
27 : sleep
27 : slept
27 : slept
28 : speak
28 : spoke
28 : spoken
29 : stand
29 : stood
29 : stood
30 : swim
30 : swam
30 : swum