English verb conjugation
MAY CERTIFICATE

Regular verb: certificate - certificated - certificated

Affirmation

Simple form	V-ing form
I may certificate you may certificate he may certificate we may certificate you may certificate they may certificate	I may be certificating you may be certificating he may be certificating we may be certificating you may be certificating they may be certificating
Perfect	V-ing perfect
I may have certificated you may have certificated he may have certificated we may have certificated you may have certificated they may have certificated	I may have been certificating you may have been certificating he may have been certificating we may have been certificating you may have been certificating they may have been certificating

Negation

Simple form	V-ing form
I may not certificate you may not certificate he may not certificate we may not certificate you may not certificate they may not certificate	I may not be certificating you may not be certificating he may not be certificating we may not be certificating you may not be certificating they may not be certificating
Perfect	V-ing perfect
I may not have certificated you may not have certificated he may not have certificated we may not have certificated you may not have certificated they may not have certificated	I may not have been certificating you may not have been certificating he may not have been certificating we may not have been certificating you may not have been certificating they may not have been certificating

Interrogative form

Simple form	V-ing form
may I certificate? may you certificate? may he certificate? may we certificate? may you certificate? may they certificate?	may I be certificating? may you be certificating? may he be certificating? may we be certificating? may you be certificating? may they be certificating?
Perfect	V-ing perfect
may I have certificated? may you have certificated? may he have certificated? may we have certificated? may you have certificated? may they have certificated?	may I have been certificating? may you have been certificating? may he have been certificating? may we have been certificating? may you have been certificating? may they have been certificating?

Interro-negative form

Simple form	V-ing form
may I not certificate? may you not certificate? may he not certificate? may we not certificate? may you not certificate? may they not certificate?	may I not be certificating? may you not be certificating? may he not be certificating? may we not be certificating? may you not be certificating? may they not be certificating?
Perfect	V-ing perfect
may I not have certificated? may you not have certificated? may he not have certificated? may we not have certificated? may you not have certificated? may they not have certificated?	may I not have been certificating? may you not have been certificating? may he not have been certificating? may we not have been certificating? may you not have been certificating? may they not have been certificating?