1.  Perfect in -si.

a.  Type -o, -ere, -si, -tus.

carpo carpere carpsi carptus pluck
sculpo sculpere sculpsi sculptus chisel
repo repere repsi ——­ creep
serpo serpere serpsi ——­ crawl
scribo scribere scripsi scriptus write
nubo nubere nupsi nupta (woman marry
only)
rego regere rexi rectus govern
tego tegere texi tectus cover
af-fligo affligere afflixi afflictus shatter
dico dicere dixi dictus say
duco ducere duxi ductus lead
coquo coquere coxi coctus cook
traho trahere traxi tractus draw
veho vehere vexi vectus carry
cingo cingere cinxi cinctus gird
tingo tingere tinxi tinctus dip
jungo jungere junxi junctus join
fingo fingere finxi fictus would
pingo pingere pinxi pictus paint
stringo stringere strinxi strictus bind
-stinguo[44] -stinguere -stinxi -stinctus blot out
unguo unguere unxi unctus anoint
vivo vivere vixi victum (est) live
gero gerere gessi gestus carry
uro urere ussi ustus burn
temno temnere con-tempsi con-temptus despise

b.  Type -o, -ere, -si, -sus.

figo figere fixi fixus fasten
mergo mergere mersi mersus sink
spargo spargere sparsi sparsus scatter
flecto flectere flexi flexus bend
necto nectere nexui nexus twine
(nexi)
mitto mittere misi missus send
rado radere rasi rasus shave
rodo rodere rosi rosus gnaw
vado vadere -vasi[45] -vasum march, walk
(est)[45]
ludo ludere lusi lusum (est) play
trudo trudere trusi trusus push
laedo laedere laesi laesus injure, hurt
claudo claudere clausi clausus close
plaudo plaudere plausi plausum (est) clap
explodo explodere explosi explosus hoot off
cedo cedere cessi cessum (est) withdraw
divido dividere divisi divisus divide
premo premere pressi pressus press