English verb conjugation
MAY CROAK

Regular verb: croak - croaked - croaked

Affirmation

Simple form	V-ing form
I may croak you may croak he may croak we may croak you may croak they may croak	I may be croaking you may be croaking he may be croaking we may be croaking you may be croaking they may be croaking
Perfect	V-ing perfect
I may have croaked you may have croaked he may have croaked we may have croaked you may have croaked they may have croaked	I may have been croaking you may have been croaking he may have been croaking we may have been croaking you may have been croaking they may have been croaking

Negation

Simple form	V-ing form
I may not croak you may not croak he may not croak we may not croak you may not croak they may not croak	I may not be croaking you may not be croaking he may not be croaking we may not be croaking you may not be croaking they may not be croaking
Perfect	V-ing perfect
I may not have croaked you may not have croaked he may not have croaked we may not have croaked you may not have croaked they may not have croaked	I may not have been croaking you may not have been croaking he may not have been croaking we may not have been croaking you may not have been croaking they may not have been croaking

Interrogative form

Simple form	V-ing form
may I croak? may you croak? may he croak? may we croak? may you croak? may they croak?	may I be croaking? may you be croaking? may he be croaking? may we be croaking? may you be croaking? may they be croaking?
Perfect	V-ing perfect
may I have croaked? may you have croaked? may he have croaked? may we have croaked? may you have croaked? may they have croaked?	may I have been croaking? may you have been croaking? may he have been croaking? may we have been croaking? may you have been croaking? may they have been croaking?

Interro-negative form

Simple form	V-ing form
may I not croak? may you not croak? may he not croak? may we not croak? may you not croak? may they not croak?	may I not be croaking? may you not be croaking? may he not be croaking? may we not be croaking? may you not be croaking? may they not be croaking?
Perfect	V-ing perfect
may I not have croaked? may you not have croaked? may he not have croaked? may we not have croaked? may you not have croaked? may they not have croaked?	may I not have been croaking? may you not have been croaking? may he not have been croaking? may we not have been croaking? may you not have been croaking? may they not have been croaking?