a | in |
a | in connection with |
a | to |
a | at |
a (a) (indefinite determiner) | un (a) (indefinite determiner) |
a (a) (indefinite determiner) | alguna (a) (indefinite determiner) |
a (a) (indefinite determiner) | alg n (a) (indefinite determiner) |
a (a) (indefinite determiner) | una (a) (indefinite determiner) |
a (o) (indefinite article) | una (o) (indefinite article) |
a (o) (indefinite article) | un (o) (indefinite article) |