Any bridi which involves tenses of selma'o PU, FAhA, or ZAhO can be contradicted by a -nai suffixed to the tense cmavo. Some examples:
As a contradictory negation, Example 10.129 implies that the bridi as a whole is false without saying anything about what is true. When the negated tense is a sumtcita, -nai negation indicates that the stated relationship does not hold:
| mi | klama | le | zarci | ca | nai | 
| I | go-to | the | market | [present] | [not] | 
| le | nu | do | klama | le | zdani | 
| the | event-of | you | go-to | the | house. | 
| 
                   It is not true that I went to the market at the same time that you went to the house.  | 
              
| le | nanmu | cu | batci | le | gerku | ne'inai | le | kumfa | 
| The | man | bites | the | dog | [within-not] | the | room. | 
| 
                   The man didn't bite the dog inside the room.  | 
              
| mi | morsi | ca'onai | le | nu | mi | jmive | 
| I | am-dead | [continuitive-negated] | the | event-of | I | live. | 
| 
                   It is false that I am dead during my life.  | 
              
It is also possible to perform scalar negation of whole tense constructs by placing a member of NAhE before them. Unlike contradictory negation, scalar negation asserts a truth: that the bridi is true with some tense other than that specified. The following examples are scalar negation analogues of Example 10.129 to Example 10.131:
| mi | na'e | pu | klama | le | zarci | 
| I | [non-] | [past] | go-to | the | market. | 
| 
                   I go to the market other than in the past.  | 
              
| le | nanmu | cu | batci | le | gerku | to'e | ne'i | le | kumfa | 
| The | man | bites | the | dog | [opposite-of] | [within] | the | room. | 
| 
                   The man bites the dog outside the room.  | 
              
| mi | klama | le | zarci | na'e | ca | le | nu | 
| I | go-to | the | market | [non-] | [present] | the | event-of | 
| do | klama | le | zdani | 
| you | go-to | the | house. | 
| 
                   I went to the market at a time other than the time at which you went to the house.  | 
              
| mi | morsi | na'e | ca'o | le | nu | mi | jmive | 
| I | am-dead | [non-] | [continuitive] | the | event-of | I | live. | 
| 
                   I am dead other than during my life.  | 
              
Unlike -nai contradictory negation, scalar negation of tenses is not limited to PU and FAhA:
| le | verba | na'e | ri'u | cadzu | le | bisli | 
| The | child | [non-] | [right] | walks-on | the | ice | 
| 
                   The child walks on the ice other than to my right.  | 
              
The use of -nai on cmavo of TAhE and ROI has already been discussed in Section 10.9; this use is also a scalar negation.