English verb conjugation
COULD TEAR-GAS

Regular verb: tear-gas - tear-gased - tear-gased

Affirmation

Simple form	V-ing form
I could tear-gas you could tear-gas he could tear-gas we could tear-gas you could tear-gas they could tear-gas	I could be tear-gasing you could be tear-gasing he could be tear-gasing we could be tear-gasing you could be tear-gasing they could be tear-gasing
Perfect	V-ing perfect
I could have tear-gased you could have tear-gased he could have tear-gased we could have tear-gased you could have tear-gased they could have tear-gased	I could have been tear-gasing you could have been tear-gasing he could have been tear-gasing we could have been tear-gasing you could have been tear-gasing they could have been tear-gasing

Negation

Simple form	V-ing form
I couldn't tear-gas you couldn't tear-gas he couldn't tear-gas we couldn't tear-gas you couldn't tear-gas they couldn't tear-gas	I couldn't be tear-gasing you couldn't be tear-gasing he couldn't be tear-gasing we couldn't be tear-gasing you couldn't be tear-gasing they couldn't be tear-gasing
Perfect	V-ing perfect
I couldn't have tear-gased you couldn't have tear-gased he couldn't have tear-gased we couldn't have tear-gased you couldn't have tear-gased they couldn't have tear-gased	I couldn't have been tear-gasing you couldn't have been tear-gasing he couldn't have been tear-gasing we couldn't have been tear-gasing you couldn't have been tear-gasing they couldn't have been tear-gasing

Interrogative form

Simple form	V-ing form
could I tear-gas? could you tear-gas? could he tear-gas? could we tear-gas? could you tear-gas? could they tear-gas?	could I be tear-gasing? could you be tear-gasing? could he be tear-gasing? could we be tear-gasing? could you be tear-gasing? could they be tear-gasing?
Perfect	V-ing perfect
could I have tear-gased? could you have tear-gased? could he have tear-gased? could we have tear-gased? could you have tear-gased? could they have tear-gased?	could I have been tear-gasing? could you have been tear-gasing? could he have been tear-gasing? could we have been tear-gasing? could you have been tear-gasing? could they have been tear-gasing?

Interro-negative form

Simple form	V-ing form
couldn't I tear-gas? couldn't you tear-gas? couldn't he tear-gas? couldn't we tear-gas? couldn't you tear-gas? couldn't they tear-gas?	couldn't I be tear-gasing? couldn't you be tear-gasing? couldn't he be tear-gasing? couldn't we be tear-gasing? couldn't you be tear-gasing? couldn't they be tear-gasing?
Perfect	V-ing perfect
couldn't I have tear-gased? couldn't you have tear-gased? couldn't he have tear-gased? couldn't we have tear-gased? couldn't you have tear-gased? couldn't they have tear-gased?	couldn't I have been tear-gasing? couldn't you have been tear-gasing? couldn't he have been tear-gasing? couldn't we have been tear-gasing? couldn't you have been tear-gasing? couldn't they have been tear-gasing?