Ablative Uses

Places Where

1. With prepositions

2. Prepositions: in, sub

3. Where is this happening?

Places From Which

1. With prepositions

2. Prepositions: ē/ex, ā/ab, dē

3. Where are you moving from

Accompaniment

1. With prepositions

2. Prepositions: cum

3. With whom?

Personal Agent

1. With prepositions

2. Prepositions: ā/ab

3. By whom was it done?

With Cardinal Numbers

1. With prepositions

2. Prepositions: ē/ex and very rarely dē

3. Out of how many? 

Manner

1. With/out prepositions

2. Prepositions: cum

3. How, in what fashion?

Separation

1. With/out prepositions

2. Prepositions: ā/ab, dē, ē/ex

3. Separated from what? 

Means/Instrument

1. Without prepositions

2. Prepositions: N/A

3. With/by what means 

Time When/Within Which

1. Without Prepositions

2. Prepositions: N/A

3. When did it happen?/Within what time span did it happen?