English verb conjugation
CAN HEAT

Regular verb: heat - heated - heated

Affirmation

Simple form	V-ing form
I can heat you can heat he can heat we can heat you can heat they can heat	I can be heating you can be heating he can be heating we can be heating you can be heating they can be heating
Perfect	V-ing perfect
I can have heated you can have heated he can have heated we can have heated you can have heated they can have heated	I can have been heating you can have been heating he can have been heating we can have been heating you can have been heating they can have been heating

Negation

Simple form	V-ing form
I can't heat you can't heat he can't heat we can't heat you can't heat they can't heat	I can't be heating you can't be heating he can't be heating we can't be heating you can't be heating they can't be heating
Perfect	V-ing perfect
I can't have heated you can't have heated he can't have heated we can't have heated you can't have heated they can't have heated	I can't have been heating you can't have been heating he can't have been heating we can't have been heating you can't have been heating they can't have been heating

Interrogative form

Simple form	V-ing form
can I heat? can you heat? can he heat? can we heat? can you heat? can they heat?	can I be heating? can you be heating? can he be heating? can we be heating? can you be heating? can they be heating?
Perfect	V-ing perfect
can I have heated? can you have heated? can he have heated? can we have heated? can you have heated? can they have heated?	can I have been heating? can you have been heating? can he have been heating? can we have been heating? can you have been heating? can they have been heating?

Interro-negative form

Simple form	V-ing form
can't I heat? can't you heat? can't he heat? can't we heat? can't you heat? can't they heat?	can't I be heating? can't you be heating? can't he be heating? can't we be heating? can't you be heating? can't they be heating?
Perfect	V-ing perfect
can't I have heated? can't you have heated? can't he have heated? can't we have heated? can't you have heated? can't they have heated?	can't I have been heating? can't you have been heating? can't he have been heating? can't we have been heating? can't you have been heating? can't they have been heating?