English verb conjugation
CAN GRAMMAR

Regular verb: grammar - grammared - grammared

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I can grammar you can grammar she can grammar we can grammar you can grammar they can grammar	I can be grammaring you can be grammaring she can be grammaring we can be grammaring you can be grammaring they can be grammaring
Perfect	V-ing perfect
I can have grammared you can have grammared she can have grammared we can have grammared you can have grammared they can have grammared	I can have been grammaring you can have been grammaring she can have been grammaring we can have been grammaring you can have been grammaring they can have been grammaring

Negation

Simple form	V-ing form
I can't grammar you can't grammar she can't grammar we can't grammar you can't grammar they can't grammar	I can't be grammaring you can't be grammaring she can't be grammaring we can't be grammaring you can't be grammaring they can't be grammaring
Perfect	V-ing perfect
I can't have grammared you can't have grammared she can't have grammared we can't have grammared you can't have grammared they can't have grammared	I can't have been grammaring you can't have been grammaring she can't have been grammaring we can't have been grammaring you can't have been grammaring they can't have been grammaring

Interrogative form

Simple form	V-ing form
can I grammar? can you grammar? can she grammar? can we grammar? can you grammar? can they grammar?	can I be grammaring? can you be grammaring? can she be grammaring? can we be grammaring? can you be grammaring? can they be grammaring?
Perfect	V-ing perfect
can I have grammared? can you have grammared? can she have grammared? can we have grammared? can you have grammared? can they have grammared?	can I have been grammaring? can you have been grammaring? can she have been grammaring? can we have been grammaring? can you have been grammaring? can they have been grammaring?

Interro-negative form

Simple form	V-ing form
can't I grammar? can't you grammar? can't she grammar? can't we grammar? can't you grammar? can't they grammar?	can't I be grammaring? can't you be grammaring? can't she be grammaring? can't we be grammaring? can't you be grammaring? can't they be grammaring?
Perfect	V-ing perfect
can't I have grammared? can't you have grammared? can't she have grammared? can't we have grammared? can't you have grammared? can't they have grammared?	can't I have been grammaring? can't you have been grammaring? can't she have been grammaring? can't we have been grammaring? can't you have been grammaring? can't they have been grammaring?