English verb conjugation
CAN UNSTRING

Irregular verb: unstring - unstrung - unstrung

Affirmation

Simple form	V-ing form
I can unstring you can unstring he can unstring we can unstring you can unstring they can unstring	I can be unstringing you can be unstringing he can be unstringing we can be unstringing you can be unstringing they can be unstringing
Perfect	V-ing perfect
I can have unstrung you can have unstrung he can have unstrung we can have unstrung you can have unstrung they can have unstrung	I can have been unstringing you can have been unstringing he can have been unstringing we can have been unstringing you can have been unstringing they can have been unstringing

Negation

Simple form	V-ing form
I can't unstring you can't unstring he can't unstring we can't unstring you can't unstring they can't unstring	I can't be unstringing you can't be unstringing he can't be unstringing we can't be unstringing you can't be unstringing they can't be unstringing
Perfect	V-ing perfect
I can't have unstrung you can't have unstrung he can't have unstrung we can't have unstrung you can't have unstrung they can't have unstrung	I can't have been unstringing you can't have been unstringing he can't have been unstringing we can't have been unstringing you can't have been unstringing they can't have been unstringing

Interrogative form

Simple form	V-ing form
can I unstring? can you unstring? can he unstring? can we unstring? can you unstring? can they unstring?	can I be unstringing? can you be unstringing? can he be unstringing? can we be unstringing? can you be unstringing? can they be unstringing?
Perfect	V-ing perfect
can I have unstrung? can you have unstrung? can he have unstrung? can we have unstrung? can you have unstrung? can they have unstrung?	can I have been unstringing? can you have been unstringing? can he have been unstringing? can we have been unstringing? can you have been unstringing? can they have been unstringing?

Interro-negative form

Simple form	V-ing form
can't I unstring? can't you unstring? can't he unstring? can't we unstring? can't you unstring? can't they unstring?	can't I be unstringing? can't you be unstringing? can't he be unstringing? can't we be unstringing? can't you be unstringing? can't they be unstringing?
Perfect	V-ing perfect
can't I have unstrung? can't you have unstrung? can't he have unstrung? can't we have unstrung? can't you have unstrung? can't they have unstrung?	can't I have been unstringing? can't you have been unstringing? can't he have been unstringing? can't we have been unstringing? can't you have been unstringing? can't they have been unstringing?