English verb conjugation
MAY PRECESS

Regular verb: precess - precessed - precessed

Affirmation

Simple form	V-ing form
I may precess you may precess he may precess we may precess you may precess they may precess	I may be precessing you may be precessing he may be precessing we may be precessing you may be precessing they may be precessing
Perfect	V-ing perfect
I may have precessed you may have precessed he may have precessed we may have precessed you may have precessed they may have precessed	I may have been precessing you may have been precessing he may have been precessing we may have been precessing you may have been precessing they may have been precessing

Negation

Simple form	V-ing form
I mayn't precess you mayn't precess he mayn't precess we mayn't precess you mayn't precess they mayn't precess	I mayn't be precessing you mayn't be precessing he mayn't be precessing we mayn't be precessing you mayn't be precessing they mayn't be precessing
Perfect	V-ing perfect
I mayn't have precessed you mayn't have precessed he mayn't have precessed we mayn't have precessed you mayn't have precessed they mayn't have precessed	I mayn't have been precessing you mayn't have been precessing he mayn't have been precessing we mayn't have been precessing you mayn't have been precessing they mayn't have been precessing

Interrogative form

Simple form	V-ing form
may I precess? may you precess? may he precess? may we precess? may you precess? may they precess?	may I be precessing? may you be precessing? may he be precessing? may we be precessing? may you be precessing? may they be precessing?
Perfect	V-ing perfect
may I have precessed? may you have precessed? may he have precessed? may we have precessed? may you have precessed? may they have precessed?	may I have been precessing? may you have been precessing? may he have been precessing? may we have been precessing? may you have been precessing? may they have been precessing?

Interro-negative form

Simple form	V-ing form
mayn't I precess? mayn't you precess? mayn't he precess? mayn't we precess? mayn't you precess? mayn't they precess?	mayn't I be precessing? mayn't you be precessing? mayn't he be precessing? mayn't we be precessing? mayn't you be precessing? mayn't they be precessing?
Perfect	V-ing perfect
mayn't I have precessed? mayn't you have precessed? mayn't he have precessed? mayn't we have precessed? mayn't you have precessed? mayn't they have precessed?	mayn't I have been precessing? mayn't you have been precessing? mayn't he have been precessing? mayn't we have been precessing? mayn't you have been precessing? mayn't they have been precessing?