With Poṭṭhapāda 49.13

49.13

‘ahosi tvaṃ atītamaddhānaṃ, na tvaṃ na ahosi;

At the time, Citta, when any one of the three modes of personality is going on, then it does not come under the category of either of the other two. It is known only by the name of the mode going on.
‘If people should ask you, Citta, thus: “Were you in the past, or not? Will you be in the future, or not? Are you now, or not,” how would you answer?’
‘I should say that I was in the past, and not not; that I shall be in the future, and not not; that I am now, and not not.’