A

Verbs in which the regular form is preferred.

Present Tense Past Tense Perf. Part.
bend bended, bent bended, bent
bereave bereaved, bereft bereaved, bereft
blend blended, blent blended, blent
bless blessed, blest blessed, blest
burn burned, burnt burned, burnt
cleave, stick cleaved (clave) cleaved
clothe clothed, clad clothed, clad
curse cursed, curst cursed, curst
dive dived (dove) dived (dove)
dream dreamed, dreamt dreamed, dreamt
dress dressed, drest dressed, drest
gild gilded, gilt gilded, gilt
heave heaved, hove heaved, hove
hew hewed hewed, hewn
lade laded laded, laden
lean leaned, leant leaned, leant
leap leaped, leapt leaped, leapt
learn learned, learnt learned, learnt
light lighted, lit lighted, lit
mow mowed mowed, mown
pen, shut up penned, pent penned, pent
plead{pleaded (plead or
pled)
{pleaded (plead or
pled)
prove proved proved, proven
reave reaved, reft reaved, reft
rive rived rived, riven
saw sawed sawed, sawn
seethe seethed (sod) seethed, sodden
shape shaped shaped, shapen
shave shaved shaved, shaven
shear sheared sheared, shorn
smell smelled, smelt smelled, smelt
sow sowed sowed, sown
spell spelled, spelt spelled, spelt
spill spilled, spilt spilled, spilt
spoil spoiled, spoilt spoiled, spoilt
stave staved, stove staved, stove
stay stayed, staid stayed, staid
swell swelled swelled, swollen
wake waked, woke waked, woke
wax, grow waxed waxed (waxen)
wed wedded wedded, wed
whet whetted, whet whetted, whet
work worked, wrought worked, wrought

B

Verbs in which the irregular form is preferred.

Present Tense Past Tense Perf. Part.
awake awoke, awaked awaked, awoke
belay belaid, belayed belaid, belayed
bet bet, betted bet, betted
crow crew, crowed crowed
dare durst, dared dared
dig dug, digged dug, digged
dwell dwelt, dwelled dwelt, dwelled
gird girt, girded girt, girded
grave graved graven, graved
hang hung, hanged[3] hung, hanged
kneel knelt, kneeled knelt, kneeled
knit knit, knitted knit, knitted
quit quit, quitted quit, quitted
rap rapt, rapped rapt, rapped
rid rid, ridded rid, ridded
shine shone (shined) shone (shined)
show showed shown, showed
shred shred, shredded shred, shredded
shrive shrived, shrove shriven, shrived
slit slit, slitted slit, slitted
speed sped, speeded sped, speeded
strew strewed strewn, strewed
strow strowed strown, strowed
sweat sweat, sweated sweat, sweated
thrive throve, thrived thrived, thriven
wet wet (wetted) wet (wetted)
wind wound (winded) wound (winded)

The verbs of the following list also are irregular; but as they lack one or more of the principal parts, they are called defective verbs.

Defective Verbs

Present Past Present Past
can could ought .....
may might ..... quoth
must ..... beware .....
shall should methinks methought
will would

All the participles are wanting in defective verbs.