"I have never spoken about this."
Translation:O tomhle jsem nikdy nemluvila.
Please see the Tips and notes how the compound past tense is formed in Czech. The participle is gendered according to the gender of the speaker.
A man: Nemluvil jsem.
A woman: Nemluvila jsem.
The first person is indicated by the auxiliary verb "jsem" which is "jsi" in the second person and is ommited in the third person.
Note that Czech has several kinds of participles and we use the -l participle for the past tense.