English verb conjugation
CAN GLASS

Regular verb: glass - glassed - glassed

Affirmation

Simple form	V-ing form
I can glass you can glass he can glass we can glass you can glass they can glass	I can be glassing you can be glassing he can be glassing we can be glassing you can be glassing they can be glassing
Perfect	V-ing perfect
I can have glassed you can have glassed he can have glassed we can have glassed you can have glassed they can have glassed	I can have been glassing you can have been glassing he can have been glassing we can have been glassing you can have been glassing they can have been glassing

Negation

Simple form	V-ing form
I cannot glass you cannot glass he cannot glass we cannot glass you cannot glass they cannot glass	I cannot be glassing you cannot be glassing he cannot be glassing we cannot be glassing you cannot be glassing they cannot be glassing
Perfect	V-ing perfect
I cannot have glassed you cannot have glassed he cannot have glassed we cannot have glassed you cannot have glassed they cannot have glassed	I cannot have been glassing you cannot have been glassing he cannot have been glassing we cannot have been glassing you cannot have been glassing they cannot have been glassing

Interrogative form

Simple form	V-ing form
can I glass? can you glass? can he glass? can we glass? can you glass? can they glass?	can I be glassing? can you be glassing? can he be glassing? can we be glassing? can you be glassing? can they be glassing?
Perfect	V-ing perfect
can I have glassed? can you have glassed? can he have glassed? can we have glassed? can you have glassed? can they have glassed?	can I have been glassing? can you have been glassing? can he have been glassing? can we have been glassing? can you have been glassing? can they have been glassing?

Interro-negative form

Simple form	V-ing form
can I not glass? can you not glass? can he not glass? can we not glass? can you not glass? can they not glass?	can I not be glassing? can you not be glassing? can he not be glassing? can we not be glassing? can you not be glassing? can they not be glassing?
Perfect	V-ing perfect
can I not have glassed? can you not have glassed? can he not have glassed? can we not have glassed? can you not have glassed? can they not have glassed?	can I not have been glassing? can you not have been glassing? can he not have been glassing? can we not have been glassing? can you not have been glassing? can they not have been glassing?