In the CHILDES lab, one of the early steps is to pick a verb that is used a lot (as reported by freq). The idea was to pick the most common verb, except have, go, want, and see. Although it’s maybe giving away something that I wanted to you answer, just to keep us on the same page, I picked eat for the first one (there were 24 forms of eat) and get for the second one (there were 24 forms of this too). 24 is not a huge number, but the hope is that by checking these 24 verbs, we might be able to extrapolate the child’s behavior on, say, eat, to estimate their behavior on all verbs. So, the more the better, except that we want to avoid verbs in that list I gave above (have, go, etc.).