English verb conjugation
CAN YEARN

Regular verb: yearn - yearned - yearned

Affirmation

Simple form	V-ing form
I can yearn you can yearn he can yearn we can yearn you can yearn they can yearn	I can be yearning you can be yearning he can be yearning we can be yearning you can be yearning they can be yearning
Perfect	V-ing perfect
I can have yearned you can have yearned he can have yearned we can have yearned you can have yearned they can have yearned	I can have been yearning you can have been yearning he can have been yearning we can have been yearning you can have been yearning they can have been yearning

Negation

Simple form	V-ing form
I can't yearn you can't yearn he can't yearn we can't yearn you can't yearn they can't yearn	I can't be yearning you can't be yearning he can't be yearning we can't be yearning you can't be yearning they can't be yearning
Perfect	V-ing perfect
I can't have yearned you can't have yearned he can't have yearned we can't have yearned you can't have yearned they can't have yearned	I can't have been yearning you can't have been yearning he can't have been yearning we can't have been yearning you can't have been yearning they can't have been yearning

Interrogative form

Simple form	V-ing form
can I yearn? can you yearn? can he yearn? can we yearn? can you yearn? can they yearn?	can I be yearning? can you be yearning? can he be yearning? can we be yearning? can you be yearning? can they be yearning?
Perfect	V-ing perfect
can I have yearned? can you have yearned? can he have yearned? can we have yearned? can you have yearned? can they have yearned?	can I have been yearning? can you have been yearning? can he have been yearning? can we have been yearning? can you have been yearning? can they have been yearning?

Interro-negative form

Simple form	V-ing form
can't I yearn? can't you yearn? can't he yearn? can't we yearn? can't you yearn? can't they yearn?	can't I be yearning? can't you be yearning? can't he be yearning? can't we be yearning? can't you be yearning? can't they be yearning?
Perfect	V-ing perfect
can't I have yearned? can't you have yearned? can't he have yearned? can't we have yearned? can't you have yearned? can't they have yearned?	can't I have been yearning? can't you have been yearning? can't he have been yearning? can't we have been yearning? can't you have been yearning? can't they have been yearning?