Используйте слово enough или too и преобразуйте предложения:
1.Example: The task was easy. I could do it by myself.(The task was easy enough for me to do it myself)
2. He can't win the competition. He is weak and lazy
3. You can't wear this jacket. It is too dirty..
4. Tom spoke loudly enough. Everybody could hear him well.
he is too weak and lazy so he can`t win the competition.
you cant wear this jacket because it isn`t clean enough.(полагаю здесь нужно использовать антоним и выйдет как то так)
tom spoke too loudly and everybody could hear him well.
Объяснение: