Spanish has thousands of fixed expressions. I have chosen some adverbial phrases with the preposition “a” so you can see how colorful those expressions can be.

A ciegas - without thinking

A deshoras - at an inappropriate time

A diestro y siniestro - left and right

A duras penas - with difficulty

A fe mía - truthfully

A gatas - on all fours

A hurtadillas - stealthily, on the sly

(echarse) A la bartola - to be lazing about

A la carrera - in a rush

A la chita callando -underhandedly, secretly

A la diabla - sloppily

A la postre - in the end

A la vez - at the same time

A lo mejor - perhaps

A mares - abundantly

A menudo - often

A mi entender - in my opinion

A ojo de buen cubero - roughly, at a guess

A ojos vista - in plain sight

A paso de tortuga - at a crawl

A pedir de boca - just fine, the best situation possible

A plazos - in installments

A regañadientes - reluctantly, unwillingly

A sabiendas - consciously, knowing the consequences

A sangre y fuego - at all costs, mercilessly

See you next time!