Kathaṃ ca pana, bhikkhave, bhikkhu kāye kāyānupassī viharati?
Idha, bhikkhave, bhikkhu araññagato vā rukkhamūlagato vā suññāgāragato vā nisīdati pallaṅkaṃ ābhujitvā, ujuṃ kāyaṃ paṇidhāya, parimukhaṃ satiṃ upaṭṭhapetvā. So sato va assasati, sato va passasati. Dīghaṃ vā assasanto ‘dīghaṃ assasāmī’ ti pajānāti,5 dīghaṃ vā passasanto ‘dīghaṃ passasāmī’ ti pajānāti. Rassaṃ vā assasanto ‘rassaṃ assasāmī’ ti pajānāti, rassaṃ vā passasanto ‘rassaṃ passasāmī’ ti pajānāti. ‘Sabbakāyapaṭisaṃvedī assasissāmī’ ti sikkhati, ‘sabbakāyapaṭisaṃvedī passasissāmī’ ti sikkhati. ‘Passambhayaṃ kāyasaṅkhāraṃ assasissāmī’ ti sikkhati, ‘passambhayaṃ kāyasaṅkhāraṃ passasissāmī’ ti sikkhati.
For example here the english translation is :
And how, monks, does a monk dwell observing body in body?
Here a monk, having gone into the forest, or to the foot of a tree, or to an empty room, sits down cross-legged, keeps his body upright and fixes his awareness in the area around the mouth. With this awareness, he breathes in, with this awareness, he breathes out. Breathing in a deep breath, he understands properly:5 "I am breathing in a deep breath." Breathing out a deep breath, he understands properly: "I am breathing out a deep breath." Breathing in a shallow breath, he understands properly: "I am breathing in a shallow breath." Breathing out a shallow breath, he understands properly: "I am breathing out a shallow breath." In this way he trains himself: "Feeling the whole body, I shall breathe in." "Feeling the whole body, I shall breathe out," thus he trains himself. "With the bodily activities calmed, I shall breathe in," thus he trains himself. "With the bodily activities calmed, I shall breathe out," thus he trains himself.
Is there an specific word in the pali verse for the "I am" part (self view) or is the translation not exactly correct in transmiting the meaning and should be "He knows there is breathing in a deep breath"?
Thank you in advance and all the best.