An interrogation program for irregular verbs.
git clone https://github.com/dragi-ns/irregular-verbs.git
cd irregular-verbs
make./ir-verbs <from_form_name> <to_form_name_1> [to_form_name_2]
./ir-verbs base "past simple"
./ir-verbs base "past participle"
./ir-verbs "past participle" base "past simple"