English verb conjugation
CAN THRUM

Regular verb: thrum - thrumed - thrumed

Affirmation

Simple form	V-ing form
I can thrum you can thrum he can thrum we can thrum you can thrum they can thrum	I can be thruming you can be thruming he can be thruming we can be thruming you can be thruming they can be thruming
Perfect	V-ing perfect
I can have thrumed you can have thrumed he can have thrumed we can have thrumed you can have thrumed they can have thrumed	I can have been thruming you can have been thruming he can have been thruming we can have been thruming you can have been thruming they can have been thruming

Negation

Simple form	V-ing form
I can't thrum you can't thrum he can't thrum we can't thrum you can't thrum they can't thrum	I can't be thruming you can't be thruming he can't be thruming we can't be thruming you can't be thruming they can't be thruming
Perfect	V-ing perfect
I can't have thrumed you can't have thrumed he can't have thrumed we can't have thrumed you can't have thrumed they can't have thrumed	I can't have been thruming you can't have been thruming he can't have been thruming we can't have been thruming you can't have been thruming they can't have been thruming

Interrogative form

Simple form	V-ing form
can I thrum? can you thrum? can he thrum? can we thrum? can you thrum? can they thrum?	can I be thruming? can you be thruming? can he be thruming? can we be thruming? can you be thruming? can they be thruming?
Perfect	V-ing perfect
can I have thrumed? can you have thrumed? can he have thrumed? can we have thrumed? can you have thrumed? can they have thrumed?	can I have been thruming? can you have been thruming? can he have been thruming? can we have been thruming? can you have been thruming? can they have been thruming?

Interro-negative form

Simple form	V-ing form
can't I thrum? can't you thrum? can't he thrum? can't we thrum? can't you thrum? can't they thrum?	can't I be thruming? can't you be thruming? can't he be thruming? can't we be thruming? can't you be thruming? can't they be thruming?
Perfect	V-ing perfect
can't I have thrumed? can't you have thrumed? can't he have thrumed? can't we have thrumed? can't you have thrumed? can't they have thrumed?	can't I have been thruming? can't you have been thruming? can't he have been thruming? can't we have been thruming? can't you have been thruming? can't they have been thruming?