English verb conjugation
CAN LICHEN

Regular verb: lichen - lichened - lichened

Affirmation

Simple form	V-ing form
I can lichen you can lichen he can lichen we can lichen you can lichen they can lichen	I can be lichening you can be lichening he can be lichening we can be lichening you can be lichening they can be lichening
Perfect	V-ing perfect
I can have lichened you can have lichened he can have lichened we can have lichened you can have lichened they can have lichened	I can have been lichening you can have been lichening he can have been lichening we can have been lichening you can have been lichening they can have been lichening

Negation

Simple form	V-ing form
I can't lichen you can't lichen he can't lichen we can't lichen you can't lichen they can't lichen	I can't be lichening you can't be lichening he can't be lichening we can't be lichening you can't be lichening they can't be lichening
Perfect	V-ing perfect
I can't have lichened you can't have lichened he can't have lichened we can't have lichened you can't have lichened they can't have lichened	I can't have been lichening you can't have been lichening he can't have been lichening we can't have been lichening you can't have been lichening they can't have been lichening

Interrogative form

Simple form	V-ing form
can I lichen? can you lichen? can he lichen? can we lichen? can you lichen? can they lichen?	can I be lichening? can you be lichening? can he be lichening? can we be lichening? can you be lichening? can they be lichening?
Perfect	V-ing perfect
can I have lichened? can you have lichened? can he have lichened? can we have lichened? can you have lichened? can they have lichened?	can I have been lichening? can you have been lichening? can he have been lichening? can we have been lichening? can you have been lichening? can they have been lichening?

Interro-negative form

Simple form	V-ing form
can't I lichen? can't you lichen? can't he lichen? can't we lichen? can't you lichen? can't they lichen?	can't I be lichening? can't you be lichening? can't he be lichening? can't we be lichening? can't you be lichening? can't they be lichening?
Perfect	V-ing perfect
can't I have lichened? can't you have lichened? can't he have lichened? can't we have lichened? can't you have lichened? can't they have lichened?	can't I have been lichening? can't you have been lichening? can't he have been lichening? can't we have been lichening? can't you have been lichening? can't they have been lichening?