English verb conjugation
SHOULD SNOWPLOUGH

Regular verb: snowplough - snowploughed - snowploughed

Affirmation

Simple form	V-ing form
I'd snowplough you'd snowplough she'd snowplough we'd snowplough you'd snowplough they'd snowplough	I'd be snowploughing you'd be snowploughing she'd be snowploughing we'd be snowploughing you'd be snowploughing they'd be snowploughing
Perfect	V-ing perfect
I should've snowploughed you should've snowploughed she should've snowploughed we should've snowploughed you should've snowploughed they should've snowploughed	I should've been snowploughing you should've been snowploughing she should've been snowploughing we should've been snowploughing you should've been snowploughing they should've been snowploughing

Negation

Simple form	V-ing form
I shouldn't snowplough you shouldn't snowplough she shouldn't snowplough we shouldn't snowplough you shouldn't snowplough they shouldn't snowplough	I shouldn't be snowploughing you shouldn't be snowploughing she shouldn't be snowploughing we shouldn't be snowploughing you shouldn't be snowploughing they shouldn't be snowploughing
Perfect	V-ing perfect
I shouldn't have snowploughed you shouldn't have snowploughed she shouldn't have snowploughed we shouldn't have snowploughed you shouldn't have snowploughed they shouldn't have snowploughed	I shouldn't have been snowploughing you shouldn't have been snowploughing she shouldn't have been snowploughing we shouldn't have been snowploughing you shouldn't have been snowploughing they shouldn't have been snowploughing

Interrogative form

Simple form	V-ing form
should I snowplough? should you snowplough? should she snowplough? should we snowplough? should you snowplough? should they snowplough?	should I be snowploughing? should you be snowploughing? should she be snowploughing? should we be snowploughing? should you be snowploughing? should they be snowploughing?
Perfect	V-ing perfect
should I have snowploughed? should you have snowploughed? should she have snowploughed? should we have snowploughed? should you have snowploughed? should they have snowploughed?	should I have been snowploughing? should you have been snowploughing? should she have been snowploughing? should we have been snowploughing? should you have been snowploughing? should they have been snowploughing?

Interro-negative form

Simple form	V-ing form
shouldn't I snowplough? shouldn't you snowplough? shouldn't she snowplough? shouldn't we snowplough? shouldn't you snowplough? shouldn't they snowplough?	shouldn't I be snowploughing? shouldn't you be snowploughing? shouldn't she be snowploughing? shouldn't we be snowploughing? shouldn't you be snowploughing? shouldn't they be snowploughing?
Perfect	V-ing perfect
shouldn't I have snowploughed? shouldn't you have snowploughed? shouldn't she have snowploughed? shouldn't we have snowploughed? shouldn't you have snowploughed? shouldn't they have snowploughed?	shouldn't I have been snowploughing? shouldn't you have been snowploughing? shouldn't she have been snowploughing? shouldn't we have been snowploughing? shouldn't you have been snowploughing? shouldn't they have been snowploughing?