Practice Makes Perfect: Spanish Pronouns and Prepositions, Premium 3rd Edition (2016)
Appendix C. Prepositions
Prepositions that show a relationship between nouns and/or pronouns
Prepositions of location
Prepositions of movement
Prepositions of geographical orientation
Prepositions of origin and destination Origin
Destination
Prepositions of time
The uses of para and por
Para
1. Destination
a. To indicate real or imagined destination
b. To express the recipient of an action
c. To indicate direction and/or final destination
d. To indicate an action’s aim or objective, including profession
2. Purpose
a. To express purpose before an infinitive
b. To indicate purpose for doing something; “in order to” before an infinitive
3. Deadline
a. To express a specific time limit or deadline in the future
b. To express a limited time span in the future
4. Standard
a. To express a comparison to a certain standard
b. To express an opinion or personal standard
Por
1. Duration
a. To express duration of time
b. To indicate periods of time during the 24-hour day
c. To express English use of Latin per
2. Substitution or exchange
a. To indicate an equal exchange or trade
b. To express substitution (“on behalf of,” “in place of”)
c. To express thanks and gratitude
3. Motivation
a. To indicate “because of” or having done something (por + INFINITIVE)
b. To express a motive for doing something
c. To express a reason for something (por + NOUN or por + INFINITIVE)
4. Movement
a. To express means of transportation
b. To express means of sending messages or information
c. To indicate the point of an intermediate destination
d. To indicate movement in an area
5. Emotions
a. To express a like (or dislike) or an emotion for someone or something
6. Idioms
a. To appear in idiomatic expressions