The phrase "all three discuss" is correct and usable in written English.
It can be used when referring to three subjects or individuals who are engaging in a discussion about a particular topic.
Example: "In the meeting, all three discuss the implications of the new policy on their departments."
Alternatives: "all three talk about" or "all three address".
All three discussed the coding and analysis in meetings between each subsequent interview.
In a pure zero-mean normal white noise environment (see, Fig. 12a), at the beginning of parameter estimation trajectory, all three discussed methods have similar behaviour (Fig. 13).
Table 2 presents regression coefficients of all three discussed models; Fig. 8 presents the differences in CIL scores of students using ICT for social communication more vs. less than once a week for all three considered models (coefficient of "E-communication" in Table 2).
All three discussed escaping violence and poverty in their home countries and a fear of returning to their previous lives.
All three discussed their comments before we reached this decision.
This includes the lovely rooms (all four discussed here have been splendidly renovated in the last few years), the comfortable tables and chairs, the handsome flower arrangements, and service that is almost uniformly correct, attentive without being annoying.
We applied all seven discussed algorithms, that is SWASA, FCM, RSFCM, EnFCM, AMSFCM, RCM, and FRCM, to all images to generate quantised images with a palette of 16 colours.
All seven discussed their work fighting for the historic health care bill, and the group described some of the concerns OFA volunteers have faced in these challenging times.
All four discussed their comments before we reached this decision, and the editor has assembled the following comments to help you prepare a revised submission.
Though I believe their insightful words stand alone, I would like to direct your attention to the fact that all three responses discuss both technical and personal aspects of dramaturgy.
