| A | B |
| He'll go to the movies WHEN he finishes studying. | Irá al cine CUANDO terminE de estudiar. |
| He went to the movies WHEN he finished studying. | Fue al cine CUANDO terminó de estudiar. |
| They won't come UNTIL you invite them. | No vendrán HASTA QUE los invitES. |
| They didn't come UNTIL you invited them. | No vinieron HASTA QUE los invitaste. |
| We'll swim ALTHOUGH it may rain. | Nadaremos AUNQUE lluevA. |
| We swam ALTHOUGH it was raining. | Nadamos AUNQUE llovía. |
| The teacher will give us the grades after we take the test. | El profe nos dará las notas DESPUÉS DE QUE tomEMOS el examen. |
| The teacher gave us the grades AFTER we took the test. | El profe nos dio las notas DESPUÉS DE QUE tomAMOS el examen. |
| I'll call you AS SOON AS she returns. | Te llamo (llamaré) ASÍ QUE ella vuelvA. |
| I called you AS SOON AS she returned. | Te llamé ASÍ QUE ella volvió. |
| We'll eat AS SOON AS your father comes home. | Comeremos TAN PRONTO COMO tu padre VENGA a casa. |
| We ate AS SOON AS your father came home. | Comimos TAN PRONTO COMO tu padre VINO a casa. |
| She'll leave AS SOON AS they tell her to. | Ella saldrá EN CUANTO se lo DIGAN. |
| She left AS SOON AS they told her to. | Ella salió EN CUANTO se lo dijeron. |
| You can play outside AS SOON AS the sun comes out. | Puedes jugar afuera LUEGO QUE SALGA el sol. |
| You always played outside AS SOON AS the sun came out. | Siempre jugabas afuera LUEGO QUE salíael sol. |
| I'll clean up everything WHILE you go to the store. | Arreglaré todo MIENTRAS QUE tú VAYAS a la tienda. |
| I cleaned up everything while you were at the store. | Arreglé todo MIENTRAS QUE tú estabas en la tienda. |