"The secretary does not have confidence in us."
Translation:Níl muinín ag an rúnaí asainn.
All present and future tense verbs are negated by inserting the negative verbal particle ní in front of them:
Ní thriomaíonn an léine - "The shirt doesn't dry"
Ní ithim oráiste - "I do not eat an orange"
Ní oibríonn an méara - "The mayor does not work"
Ní thiocfaidh an bus - "The bus will not come"
Ní théim chuici - "I do not go to her"
In the case of the verb bí (tá in the present tense), the present tense dependent form, used after verbal particles, is fuil, so you get an bhfuil, go bhfuil etc, but what should be ní fhuil has become níl, because fh is silent. So níl is only used if the positive version of the question would use tá.
níl sé fuar - "he is not cold"
tá sé fuair - "he is cold"
níl ocras orm - "I'm not hungry"
tá ocras orm - "I am hungry"
ní is also the negative form of the copula is.