Weak: "I do not know how to do(...)" Strong: "I have yet to…
Weak: "I do not know how to do(...)"
Strong: "I have yet to learn how to do it (...)"
Weak: "I do not want to eat any junk food"
Strong: "I refuse to eat any junk food"
Weak: "I do not know how to do(...)"
Strong: "I have yet to learn how to do it (...)"
Weak: "I do not want to eat any junk food"
Strong: "I refuse to eat any junk food"