9. Yo nado. 10. Ellos cantan 11. Yo canto 1. Mary y Lisa están cantando 2. Lola está escribiendo( i can’t really see it, but if she’s writing then it’s escribiendo) 3. Carlos y Sam están hablando por teléfono.
9. The correct form is Yo nado because it is in the yo form 10. The correct form is Ellos cantan because it is in the plural form if they and cantamos is the nosotros form. 11. The correct form is Yo canto because it is in the yo form
I'm not sure on 1-3 i haven't done that in awhile sorry