English verb conjugation
COULD FERRY

Regular verb: ferry - ferried - ferried

Affirmation

Simple form	V-ing form
I could ferry you could ferry he could ferry we could ferry you could ferry they could ferry	I could be ferrying you could be ferrying he could be ferrying we could be ferrying you could be ferrying they could be ferrying
Perfect	V-ing perfect
I could have ferried you could have ferried he could have ferried we could have ferried you could have ferried they could have ferried	I could have been ferrying you could have been ferrying he could have been ferrying we could have been ferrying you could have been ferrying they could have been ferrying

Negation

Simple form	V-ing form
I couldn't ferry you couldn't ferry he couldn't ferry we couldn't ferry you couldn't ferry they couldn't ferry	I couldn't be ferrying you couldn't be ferrying he couldn't be ferrying we couldn't be ferrying you couldn't be ferrying they couldn't be ferrying
Perfect	V-ing perfect
I couldn't have ferried you couldn't have ferried he couldn't have ferried we couldn't have ferried you couldn't have ferried they couldn't have ferried	I couldn't have been ferrying you couldn't have been ferrying he couldn't have been ferrying we couldn't have been ferrying you couldn't have been ferrying they couldn't have been ferrying

Interrogative form

Simple form	V-ing form
could I ferry? could you ferry? could he ferry? could we ferry? could you ferry? could they ferry?	could I be ferrying? could you be ferrying? could he be ferrying? could we be ferrying? could you be ferrying? could they be ferrying?
Perfect	V-ing perfect
could I have ferried? could you have ferried? could he have ferried? could we have ferried? could you have ferried? could they have ferried?	could I have been ferrying? could you have been ferrying? could he have been ferrying? could we have been ferrying? could you have been ferrying? could they have been ferrying?

Interro-negative form

Simple form	V-ing form
couldn't I ferry? couldn't you ferry? couldn't he ferry? couldn't we ferry? couldn't you ferry? couldn't they ferry?	couldn't I be ferrying? couldn't you be ferrying? couldn't he be ferrying? couldn't we be ferrying? couldn't you be ferrying? couldn't they be ferrying?
Perfect	V-ing perfect
couldn't I have ferried? couldn't you have ferried? couldn't he have ferried? couldn't we have ferried? couldn't you have ferried? couldn't they have ferried?	couldn't I have been ferrying? couldn't you have been ferrying? couldn't he have been ferrying? couldn't we have been ferrying? couldn't you have been ferrying? couldn't they have been ferrying?