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"Caminar" is an intransitive verb which is often translated as "to walk", and "amarse" is a reciprocal verb which is often translated as "to love each other". Learn more about the difference between "caminar" and "amarse" below.
caminar(
kah
-
mee
-
nahr
)An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
2. (to function) (Latin America)
Regionalism used in Latin America: all the countries in South America, Central America, and the Caribbean. Does not include Spain.
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. to walk 
Cuanto más rápido sea tu ritmo, más rápido caminarás las cinco millas.The faster your pace, the faster you'll walk the five miles.
amarse(
ah
-
mahr
-
seh
)A reciprocal verb is a verb that indicates that two or more subjects perform an action on each other (e.g., Ellos se abrazan.).
a. to love each other 
Se han amado desde el momento en que se conocieron.They have loved each other from the moment they met.
amar
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. to love 
Yo te amo, Ana, y quiero pasar el resto de mi vida contigo.I love you, Ana, and I want to spend the rest of my life with you.
Pablo ama a su esposa con todo su ser.Pablo loves his wife with all his heart.