| If...GoTo statement | Input # statement | InStrC function | IsNull function |
| If...Then...Else statement | Input function | Int function | IsNumeric function |
| If...Then...ElseIf statement | InputB function | Integer data type | IsObject function |
| %If directive | InputBox function | IsArray function | IsScalar function |
| IMESetMode function | InputBP function | IsDate function | IsUnknown function |
| IMEStatus function | InStr function | IsElement function |  |
| Implode function | InStrB function | IsEmpty function | |
| %Include directive | InStrBP function | IsList function | |
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| Join function | | | |
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| Kill function | | | |
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| LBound function | LeftC function | Let statement | LOF function |
| LCase function | Len function | Line Input # statement | Log function |
| Left function | LenB function | ListTag function | Long data type |
| LeftB function | LenBP function | LOC function | LSet statement |
| LeftBP function | LenC function | Lock and Unlock statements | LTrim function |