| A | B |
| hay | there is, there are |
| había, hubo | there was, there were |
| habrá | there will be |
| habría | there would be |
| ha habido | there has been |
| hay lodo | it is muddy |
| hay luna | there is moonlight |
| hay sol | it is sunny |
| hay neblina | it is foggy |
| hay polvo | it is dusty |
| haber de | to be to, to be supposed to |
| hay que + infinitive | one must |
| hay + noun + que + infinitive | there is (there are) + noun + verb |
| No hay de que | Don't mention it. You're welcome. |
| Había muchos clientes en la tienda. | There were many customers in the store. |
| He de salir a las nueve. | I am to leave at 9:00. |
| No hubo sol ayer, y llovió. | It wasn't sunny & it rained. |
| Había polvo en el camino. | It was very dusty on the road. |
| Después de la lluvia había lodo. | After the rain it was muddy. |
| Ayer fue un día claro; no hubo neblina. | Yesterday was a clear day; it was not foggy. |
| Habrá luna esta noche. | There will be moonlight tonight. |
| Habrá que salir temprano. | It will be necessary to leave early. |
| Siempre habrá problemas que resolver. | There will always be problems to solve. |