me pueden ayudar a cambiar la oración positiva a su forma negativa y de pregunta por favor doy coronita es que no se cómo hacerlo :'(

Respuesta:
1:
Negative: Jimmy isn't watching TV.
Interrogative: Is Jimmy watch TV ?
2:
Negative: Their mother isn't speaking Chinese.
Interrogative: Is their mother speak Chinese ?
3:
Negative: We aren't have a good time.
Interrogative: Are we have a good time ?
4:
Negative: The dog isn't eat a bone.
Interrogative: Is the dog eat a bone ?