English verb conjugation
CAN TIRE

Regular verb: tire - tired - tired

Affirmation

Simple form	V-ing form
I can tire you can tire he can tire we can tire you can tire they can tire	I can be tiring you can be tiring he can be tiring we can be tiring you can be tiring they can be tiring
Perfect	V-ing perfect
I can have tired you can have tired he can have tired we can have tired you can have tired they can have tired	I can have been tiring you can have been tiring he can have been tiring we can have been tiring you can have been tiring they can have been tiring

Negation

Simple form	V-ing form
I can't tire you can't tire he can't tire we can't tire you can't tire they can't tire	I can't be tiring you can't be tiring he can't be tiring we can't be tiring you can't be tiring they can't be tiring
Perfect	V-ing perfect
I can't have tired you can't have tired he can't have tired we can't have tired you can't have tired they can't have tired	I can't have been tiring you can't have been tiring he can't have been tiring we can't have been tiring you can't have been tiring they can't have been tiring

Interrogative form

Simple form	V-ing form
can I tire? can you tire? can he tire? can we tire? can you tire? can they tire?	can I be tiring? can you be tiring? can he be tiring? can we be tiring? can you be tiring? can they be tiring?
Perfect	V-ing perfect
can I have tired? can you have tired? can he have tired? can we have tired? can you have tired? can they have tired?	can I have been tiring? can you have been tiring? can he have been tiring? can we have been tiring? can you have been tiring? can they have been tiring?

Interro-negative form

Simple form	V-ing form
can't I tire? can't you tire? can't he tire? can't we tire? can't you tire? can't they tire?	can't I be tiring? can't you be tiring? can't he be tiring? can't we be tiring? can't you be tiring? can't they be tiring?
Perfect	V-ing perfect
can't I have tired? can't you have tired? can't he have tired? can't we have tired? can't you have tired? can't they have tired?	can't I have been tiring? can't you have been tiring? can't he have been tiring? can't we have been tiring? can't you have been tiring? can't they have been tiring?