Improved speed?
Yes. Simple past tense of speed.
glide,sped,skid,slide and lots more
accelerated
Sped is the only one I can think of.He sped to the grocery store, knowing he needed to pick up something for dinner.
The verb is sped :)
The group sped away from the police.He sped up his writing in order to finish the test before the time ran out.
sped
Answer: Yes, 'sped' is the past participle of 'speed'. Example sentence: the car sped past the stop sign. 'Sped' is also short for special education. a sped is a person who has troubles with managing time and may have trouble with reading or writing it could be someone who is dyslexic
Sped up.
The past participle of "sped" is "sped."
Sped is the preterit,( I sped) past conditional ( I would have sped), and plusperfect (I had sped) of the verb speed.
"Sped" is the past tense version of speed.