English verb conjugation
CAN LABOR

Regular verb: labor - labored - labored

Affirmation

Simple form	V-ing form
I can labor you can labor he can labor we can labor you can labor they can labor	I can be laboring you can be laboring he can be laboring we can be laboring you can be laboring they can be laboring
Perfect	V-ing perfect
I can have labored you can have labored he can have labored we can have labored you can have labored they can have labored	I can have been laboring you can have been laboring he can have been laboring we can have been laboring you can have been laboring they can have been laboring

Negation

Simple form	V-ing form
I can't labor you can't labor he can't labor we can't labor you can't labor they can't labor	I can't be laboring you can't be laboring he can't be laboring we can't be laboring you can't be laboring they can't be laboring
Perfect	V-ing perfect
I can't have labored you can't have labored he can't have labored we can't have labored you can't have labored they can't have labored	I can't have been laboring you can't have been laboring he can't have been laboring we can't have been laboring you can't have been laboring they can't have been laboring

Interrogative form

Simple form	V-ing form
can I labor? can you labor? can he labor? can we labor? can you labor? can they labor?	can I be laboring? can you be laboring? can he be laboring? can we be laboring? can you be laboring? can they be laboring?
Perfect	V-ing perfect
can I have labored? can you have labored? can he have labored? can we have labored? can you have labored? can they have labored?	can I have been laboring? can you have been laboring? can he have been laboring? can we have been laboring? can you have been laboring? can they have been laboring?

Interro-negative form

Simple form	V-ing form
can't I labor? can't you labor? can't he labor? can't we labor? can't you labor? can't they labor?	can't I be laboring? can't you be laboring? can't he be laboring? can't we be laboring? can't you be laboring? can't they be laboring?
Perfect	V-ing perfect
can't I have labored? can't you have labored? can't he have labored? can't we have labored? can't you have labored? can't they have labored?	can't I have been laboring? can't you have been laboring? can't he have been laboring? can't we have been laboring? can't you have been laboring? can't they have been laboring?