to wake

woken

despertar(se)

waking

understanding

to understand

understood

I have understood..

treading

pisar

to tread

trodden

to thrust

thrusting

thrust

She thrust the money into his hand.

throwing

Alejo threw the ball over the fence

thrown

tp throw

torn

rasgar- Amado tore his pants on the chair as he stood up.

tearing

to tear

teaches

Vale has taught us to be happy.

teaching

taught

takes

Mike's life had almost been taken by...

taken

to swing

balancear

swung

Caro has successfully swung on a tight rope.

swum

Isa has never swum in the Amazon river.

swimming

swims

My parents have never sworn even in distress.

swears

sworn

jurar o insultar

striving

strives

esforzarse

striven

Bees have stung people when in danger

stings

stung

picar (insectos)

strikes

striking

Mark had been struck on the head.

struck

His feet haven't stunk since he uses powder.

stunk

apestar - smell badly

springing

sprung

Weeds have sprung up everywhere

brotar - nacer

extender -untar

spread

I have always spread peanut butter on sweet bread.

spreading

Grandparents have always spoilt their grandchildren.

estropear - malcriar

spoilt

spoils

split

to divide

Mark had split his head open in front of Ponnyboy Curtis

splitting