follow的过去式是什么

"The ducklings followed their mother around the pond"
"Please follow the guide through the museum"

"Tuesday always follows Monday"

"It follows that your assertion is false"
"the theorem falls out nicely"

"follow the road"
"follow the trail"

"He complied with my instructions"
"You must comply or else!"
"Follow these simple rules"
"abide by the rules"

"A terrible tsunami followed the earthquake"

"Follow a pattern"
"Follow my example"

"Mary plays best, with John and Sue following"

"She followed the feminist movement"
"The candidate espouses Republican ideals"

"She followed dinner with a brandy"
"He followed his lecture with a question and answer period"

"Teenagers follow their friends in everything"

"We must follow closely the economic development is Cuba"
"trace the student's progress"

"Keep an eye on the baby, please!"
"The world is watching Sarajevo"
"She followed the men with the binoculars"

"Carter followed Ford"
"Will Charles succeed to the throne?"

"The orchestra could barely follow the frequent pitch changes of the soprano"

"He kept up on his country's foreign policies"

"Melons come from a vine"
"Understanding comes from experience"

"Let's follow our great helmsman!"
"She followed a guru for years"

"These people still follow the laws of their ancient religion"

"He is a herpetologist"
"She is our resident philosopher"

"The police had been following him for weeks but they could not prove his involvement in the bombing"

"The police car pursued the suspected attacker"
"Her bad deed followed her and haunted her dreams all her life"

"Can you follow her argument?"
"When he lectures, I cannot follow"

"Stick to your principles"
"stick to the diet"