English verb conjugation
MAY PREBOIL

Regular verb: preboil - preboiled - preboiled

Affirmation

Simple form	V-ing form
I may preboil you may preboil he may preboil we may preboil you may preboil they may preboil	I may be preboiling you may be preboiling he may be preboiling we may be preboiling you may be preboiling they may be preboiling
Perfect	V-ing perfect
I may have preboiled you may have preboiled he may have preboiled we may have preboiled you may have preboiled they may have preboiled	I may have been preboiling you may have been preboiling he may have been preboiling we may have been preboiling you may have been preboiling they may have been preboiling

Negation

Simple form	V-ing form
I may not preboil you may not preboil he may not preboil we may not preboil you may not preboil they may not preboil	I may not be preboiling you may not be preboiling he may not be preboiling we may not be preboiling you may not be preboiling they may not be preboiling
Perfect	V-ing perfect
I may not have preboiled you may not have preboiled he may not have preboiled we may not have preboiled you may not have preboiled they may not have preboiled	I may not have been preboiling you may not have been preboiling he may not have been preboiling we may not have been preboiling you may not have been preboiling they may not have been preboiling

Interrogative form

Simple form	V-ing form
may I preboil? may you preboil? may he preboil? may we preboil? may you preboil? may they preboil?	may I be preboiling? may you be preboiling? may he be preboiling? may we be preboiling? may you be preboiling? may they be preboiling?
Perfect	V-ing perfect
may I have preboiled? may you have preboiled? may he have preboiled? may we have preboiled? may you have preboiled? may they have preboiled?	may I have been preboiling? may you have been preboiling? may he have been preboiling? may we have been preboiling? may you have been preboiling? may they have been preboiling?

Interro-negative form

Simple form	V-ing form
may I not preboil? may you not preboil? may he not preboil? may we not preboil? may you not preboil? may they not preboil?	may I not be preboiling? may you not be preboiling? may he not be preboiling? may we not be preboiling? may you not be preboiling? may they not be preboiling?
Perfect	V-ing perfect
may I not have preboiled? may you not have preboiled? may he not have preboiled? may we not have preboiled? may you not have preboiled? may they not have preboiled?	may I not have been preboiling? may you not have been preboiling? may he not have been preboiling? may we not have been preboiling? may you not have been preboiling? may they not have been preboiling?