English verb conjugation
CAN DOUBLE-TONGUE

Regular verb: double-tongue - double-tongued - double-tongued

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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