por favor contestar bien

Respuesta:
Espero te sirva.
Explicación:
1) Es fácil si seguimos la reglas gramaticales del inglés.
1. Were Was es usualmente utilizado para singular
2. Was Were es usualmente utilizado para plural
3. Were
4. Was
5. Were
6. Was
7. Were
8. Were
9. Was
10. Was
2) Siguiendo las mismas reglas gramaticales del inglés.
1. was not
2. were not
3. was not
4. was not
5. were not
6. were not
7. was not
8. was not
9. was not
10. were not
3) Aquí ocupamos conjugar al verbo con -ing
Un ejemplo en español;
Yo estaba cantando. I was singing
1. Driving
2. Taping
3. Running
4. Wearing
5. Shouting
6. Doing
7. Swimming
8. Sneezing
9. Looking
10. Texting