| A | B |
| ser | to be (DOCTOR) |
| soy | I am (DOCTOR) |
| eres | you are *familiar (DOCTOR) |
| es | he/she is; You are *formal (DOCTOR) |
| somos | we are (DOCTOR) |
| sois | you all *Spain are (DOCTOR) |
| son | They/You *plural are (DOCTOR) |
| estar | to be (LACE) |
| estoy | I am (LACE) |
| estás | you are *familiar (LACE) |
| está | he/she is; You are *formal (LACE) |
| estamos | we are (LACE) |
| estáis | you all *Spain are (LACE) |
| están | They/You *plural are (LACE) |