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Patterns
One of a kind
Verbs whose forms follow no reusable pattern: be, go, do, have. Pure memorization, and the highest-frequency verbs in the language — so they get drilled first regardless.
26verbs
be
was · been
do
did · done
go
went · gone
see
saw · seen
come
came · come
give
gave · given
become
became · become
run
ran · run
fall
fell · fallen
forget
forgot · forgotten
eat
ate · eaten
beat
beat · beaten
forgive
forgave · forgiven
overcome
overcame · overcome
prove
proved · proven
swell
swelled · swollen
tread
trod · trodden
slay
slew · slain
shave
shaved · shaven
foresee
foresaw · foreseen
redo
redid · redone
befall
befell · befallen
overrun
overran · overrun
undergo
underwent · undergone
undo
undid · undone
outdo
outdid · outdone