English verb conjugation
CAN INTERFACE

Regular verb: interface - interfaced - interfaced

Affirmation

Simple form	V-ing form
I can interface you can interface she can interface we can interface you can interface they can interface	I can be interfacing you can be interfacing she can be interfacing we can be interfacing you can be interfacing they can be interfacing
Perfect	V-ing perfect
I can have interfaced you can have interfaced she can have interfaced we can have interfaced you can have interfaced they can have interfaced	I can have been interfacing you can have been interfacing she can have been interfacing we can have been interfacing you can have been interfacing they can have been interfacing

Negation

Simple form	V-ing form
I can't interface you can't interface she can't interface we can't interface you can't interface they can't interface	I can't be interfacing you can't be interfacing she can't be interfacing we can't be interfacing you can't be interfacing they can't be interfacing
Perfect	V-ing perfect
I can't have interfaced you can't have interfaced she can't have interfaced we can't have interfaced you can't have interfaced they can't have interfaced	I can't have been interfacing you can't have been interfacing she can't have been interfacing we can't have been interfacing you can't have been interfacing they can't have been interfacing

Interrogative form

Simple form	V-ing form
can I interface? can you interface? can she interface? can we interface? can you interface? can they interface?	can I be interfacing? can you be interfacing? can she be interfacing? can we be interfacing? can you be interfacing? can they be interfacing?
Perfect	V-ing perfect
can I have interfaced? can you have interfaced? can she have interfaced? can we have interfaced? can you have interfaced? can they have interfaced?	can I have been interfacing? can you have been interfacing? can she have been interfacing? can we have been interfacing? can you have been interfacing? can they have been interfacing?

Interro-negative form

Simple form	V-ing form
can't I interface? can't you interface? can't she interface? can't we interface? can't you interface? can't they interface?	can't I be interfacing? can't you be interfacing? can't she be interfacing? can't we be interfacing? can't you be interfacing? can't they be interfacing?
Perfect	V-ing perfect
can't I have interfaced? can't you have interfaced? can't she have interfaced? can't we have interfaced? can't you have interfaced? can't they have interfaced?	can't I have been interfacing? can't you have been interfacing? can't she have been interfacing? can't we have been interfacing? can't you have been interfacing? can't they have been interfacing?