English verb conjugation
CAN TONGUE

Regular verb: tongue - tongued - tongued

Affirmation

Simple form	V-ing form
I can tongue you can tongue she can tongue we can tongue you can tongue they can tongue	I can be tonguing you can be tonguing she can be tonguing we can be tonguing you can be tonguing they can be tonguing
Perfect	V-ing perfect
I can have tongued you can have tongued she can have tongued we can have tongued you can have tongued they can have tongued	I can have been tonguing you can have been tonguing she can have been tonguing we can have been tonguing you can have been tonguing they can have been tonguing

Negation

Simple form	V-ing form
I can't tongue you can't tongue she can't tongue we can't tongue you can't tongue they can't tongue	I can't be tonguing you can't be tonguing she can't be tonguing we can't be tonguing you can't be tonguing they can't be tonguing
Perfect	V-ing perfect
I can't have tongued you can't have tongued she can't have tongued we can't have tongued you can't have tongued they can't have tongued	I can't have been tonguing you can't have been tonguing she can't have been tonguing we can't have been tonguing you can't have been tonguing they can't have been tonguing

Interrogative form

Simple form	V-ing form
can I tongue? can you tongue? can she tongue? can we tongue? can you tongue? can they tongue?	can I be tonguing? can you be tonguing? can she be tonguing? can we be tonguing? can you be tonguing? can they be tonguing?
Perfect	V-ing perfect
can I have tongued? can you have tongued? can she have tongued? can we have tongued? can you have tongued? can they have tongued?	can I have been tonguing? can you have been tonguing? can she have been tonguing? can we have been tonguing? can you have been tonguing? can they have been tonguing?

Interro-negative form

Simple form	V-ing form
can't I tongue? can't you tongue? can't she tongue? can't we tongue? can't you tongue? can't they tongue?	can't I be tonguing? can't you be tonguing? can't she be tonguing? can't we be tonguing? can't you be tonguing? can't they be tonguing?
Perfect	V-ing perfect
can't I have tongued? can't you have tongued? can't she have tongued? can't we have tongued? can't you have tongued? can't they have tongued?	can't I have been tonguing? can't you have been tonguing? can't she have been tonguing? can't we have been tonguing? can't you have been tonguing? can't they have been tonguing?